Pros: -Cheap for mobo + CPU
-low power and passively cooled so its silent
-no worries about bending CPU pins or damaging it installing since it comes already installed

Cons: -When I turned it on for the first time, there was a spark in the MOBO and smoke came out. It still works and I didn't have time to exchange it so now I'm stuck with it
-USB ports don't work during OS installation so no USB keyboard or mouse either. You need a PS/2 keyboard or apply a hotfix from their website to make a bootable ISO with USB support.
-Had to find and install a CD drive just to install the OS since USB ports didn't work

Other Thoughts: Had a spark and smoke on first power on. Not a pleasant surprise.

Manufacturer Response:

Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
For the "USB ports don't work during OS installation ", it might be installing Windows 7.
Please visit link below for How to install Windows 7 on 3000 series mainboards with USB input.

Link: http://www.asrock.com/microsite/Win7Install/index.html

If you have any technical support inquiry, please contact us at http://www.ASRock.com/Support/tsd.asp

Thank you

ASRock Support
Tech Support Email: http://www.ASRock.com/Support/tsd.asp

Pros: Sort of functional

Cons: Won't take a BIOS update. Company ignores me for TWO MONTHS then basically just says "too bad" and brushes me off. The board is in a place where I can't take it offline for the 2-3 weeks it'll take them to get a replacement. Their response? too bad. Nevermind that they UTTERLY FAILED at their jobs.

Manufacturer Response:

Dear Valued ASRock Customer,

Sorry for any inconvenience this may have caused you.
The mainboard only released one BIOS version (1.50)so far. (usually does not released new BIOS version unless required bugs fix).
For the " Company ignores me for TWO MONTHS ", we do have both phone and email support.
If you have any technical support inquiry, please contact us at 909-590-8308 or http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://www.ASRock.com/Support/tsd.asp

Pros: Bought this board specifically to run as a NAS. Compared to other ASRock boards and went with this one mainly because of the newer processor, support for greater amounts of RAM and lower TDP.

Other boards I considered:
ASRock N3150-ITX
ASRock AD2550R/U3S3
FreeNAS/Win 10:
Best thing of all is FreeNAS works without any issues at all. Downloaded version 9.10 on 3/29/16. I believe FreeBSD added support for USB 3.0 recently. Others have had issues with the keyboard and USB 3.0, but i had no such issues. I started by just booting to Windows 10. Booted right up, installed the drives just to play around with it for a little. Easily maxed the 4 cores during boot, took a little before everything calmed down and I could start opening browsers and running a CPU stress test. Saw a peak of 45 deg Celsius with an ambient temp of around 10c. Downloaded the FreeNAS ISO and used Rufus 2.8 to prep a Kingston Datadraveler 16GB USB 3.0 drive. When asked I chose DD mode rather than ISO mode. Booted to that and installed onto a Mushkin drive, model MKNUFDAM32GB. 5 drives in a RAID-Z1 running great. Using default compression it averages about 40% load while copying 1TB worth of files, mixed large and small. I plan on setting up Plex server on it as well and see how streaming works. I mostly use a NAS just as file storage and let my HTPC do the processing on videos. May end up running iSCSI for my HTPC to install games on. May report back on that.

Power:
My system running FreeNAS with all drives active and during an active file transfer consumes 49-55w from the wall measured with a P3 Kill-A-Watt. With the board only in bios, no drives, 1 PCIe card uses 24w. Peak I've seen is during power on when the drives are spinning up @80w. I could use a lower output PSU to hit its peak efficiency. Currently have a 500w Corsair PSU which is total overkill.

Cons: I know this is a limitation of the SoC used in this product and the 4 PCIe lanes that it has, but I would like to see boards in this price point come with more SATA ports for scenarios where the board can be used in a NAS. I used a PCIe 1x 4 port SATA card so its not an issue for me. Maybe add m.2 also, again Soc limitation. I don't believe Intel makes a consumer SoC in this price point that has more PCIe lanes, that's more the territory of the server Atom SoC. Here's hoping that will change in the future.

Other Thoughts: My build (model number listed after hyphen if applicable):
Cheap mid-atx case
This board
Mushkin Flash drive for FreeNAS boot - MKNUFDAM32GB
Mushkin DDR3 1600 2x4GB SO-DIMM - 997033
5x Seagate 2.5" drives - ST9160511NS
PCIe 1x 4 port SATA card - SI-PEX40064
Corsair CX500 PSU

Overall this board is great. Could easily be used as a low power HTPC streaming box or for Steam In-Home streaming. I may be a little critical about the Windows 10 performance, but I am spoiled by my Xeon E3-1275v3 workstation. I have not noticed any bottlenecks with network performance in FreeNAS. Was able to peak at 700mb/s, but my source media is a little slow. Will test again once I get everything transferred.

Pros: Win 7-64 bit test scores are: CPU=6.4, Mem=7.1, Aero=4.8, Graphics=6.2, HD=5.9. The onboard graphics will take your breath away, they are outstanding and the audio is superb. For a quiet HTPC this is MB clearly sets the new standard. I disabled Aero in Win 7 and this MB zips through the OS with plenty of snap. I used 8 GB of 3 year old normal PC3=10700 mh memory and everything works fine in the memory department. CPUID reports this CPU does indeed have the VT-X, MMX and AES instruction set. This MB operates with a 5 to 30 multiplier on the 80 MHz buss. My machine idles/naps at 480 MHz and gets up to normal operating speed of 1020 or 1600 MHz instantly at the first keystroke. Under moderate to heavy loads this MB jumps to 2400 MHz with ease and stays there with no hiccups. In the bios you can choose Economy, Normal or Sport (fast high performance) modes. I chose Sports mode. My unit came with the 1.20 bios. All the drivers installed nicely. All 4 cores work fine and this system zips along perfectly. I like having 4 USB3.0 ports on the back and a USB3.0 connection port on the MB. Update March 20, 2016: My video in Win7 was stuttering a bit. The solution is to go to the Intel site and download the Intel graphic driver (Intel Driver Update Utility) instead of relying on the Microsoft graphic driver. Once you have the Intel driver then open the HD Intel Graphics Panel and click on the 3D selection. Set Application Optimal Mode to “Enable”. Set Multi-Sample Anti-Aliasing to “Turn Off”. Set Conservative Morphological Anti-Aliasing to “Override Application Settings". Set General Settings to “Performance". Hit the back button in the upper left hand corner and select Power. Select “Maximum Performance”. Hit the Apply button in lower right corner and save this new profile. In the BIOS (before your next boot up) change the amount of shared memory dedicated to onboard graphics to the max of 512mb instead of Auto. Your graphics will never stutter again.

Cons: I agree in large part with David M on his review of this motherboard. The onboard LAN is just passable, not even close to outstanding. I added a PCIe Rosewill gigabyte PCIe 1x card to this setup to use as my main connection to the Internet. Heat is definitely a small problem on this board. After a CPUID stress test and shutdown the MB would not boot up as some headstrong heat sensor was not allowing the computer to fire up for 15 minutes. I added a small 2" fan to the CPU heat sink. The CPU never goes over 30 C now and rebooting is no problem. My machine won't boot up if the DP and DVI ports are both connected to active monitors. I have to disconnect the DP unit to get this machine to boot. NewEgg sold an Open Box unit to me, fortunately it worked but when I pay for a new unopened box then I want a new unopened box. period. The HDMI port is too close to the DVI port and if your cable connectors are overly fat (with added plastic for good grips) then you won't be able to have both cables connected. I have a HDMI-to-VGA adapter that won't seat on the MB back because of the overhang from the DVI plug immediately next to the HDMI port.

Other Thoughts: Installing Win 7 64bit on this MB is a huge challenge owing to the fact none of the USB ports will become active during the installation without the kludge Azrock USB patch installed. I did not use the patch, I resurrected an old PS2 mouse and keyboard alternately switching them on the one PS2 port to finally get through the installation of Win 7 from a DVD drive. USB keyboards and mice will not work during a fresh Win 7 install. Update March 20, 2016: Just use a PS2 keyboard on the Win 7 install and the tab key to move about the page, when the program ask you to make a box selection (after you have tabbed to it) just use your + or - key to "check" the box. You don't need a mouse to make the Win 7 installation.

Pros: Very good performance considering its TDP. Installed Linux Mint without a problem at all. I build it to stream Youtube and for skype/internet browsing. Boots just a fast as my 5820K on WIN10.
At a Youtube 1080p @ 60fps using Chrome i got 40% CPU utilization. Going one step up to 1440p, it played every clip without stuttering (65-70% CPU utilization).

Going to try to install a half size mPcie SSD, will see if she boots. Might be a long freeNASs project...

Cons: none

Other Thoughts: I personally would like to see a possible fan mounting solution on the heatsink. I know its low TDP but still (I'm oldschool). Buts its not a con at all.

Pros: This is a great little board feature wise. Very low power usage. With 8 gig of memory it is great to surf the web, create graphic designs, and edit images.

Cons: I am using Linux Mint 17.3 and after installing the video would not work except as low resolution. After surfing the web for an answer I installed the latest kernel and the video worked almost! It displays fine except on occasion the screen goes blank. The monitor then goes to sleep. It may do this a couple times a day or more often.
I started holding the power button in to kill the computer and then restarting it, but then I discovered that putting the machine to sleep with the power button and then awaking it would bring the display back.

Other Thoughts: I would recommend the product but only after the video problem is solved.

Manufacturer Response:

Dear Lee,

We sincerely apologize for any inconvenience this may have caused you.
Please update the latest BIOS at UEFI/BIOS, Tools, Internet Flash (required internet connection).
Load the BIOS setting default.
If problem still persist, please test with another monitor to check if the symptom still occurs.

If you have any technical support inquiry, please contact us at http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://www.ASRock.com/Support/tsd.asp

Pros: Small, quiet

Cons: As many pointed out, USB keyboard and mouse do not work with Win 7 Installation, thus I have to move to Win 10. I also need Fedora, and again, no version of fedora (up to 23, the current version) works at all. The system is frozen because mouse/keyboard are not recognized. There is only one PS/2 port, so if I have both PS/2 keyboard and mouse, not clear how can I use them with just one port?

Manufacturer Response:

Dear Huan,

Sorry for any inconvenience this may have caused you.
Due to Windows 7 does not built-in USB drivers for N3000 series.
To Install Windows 7 with USB Keyboard and mouse, please visit link below for Windows 7 Installation Guide (select N3000 series).

Link: http://www.asrock.com/microsite/Win7Install/index.html

If you have any technical inquiry or warranty question, please contact us at http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock SUPPORT
Tech Support Email: http://www.ASRock.com/Support/tsd.asp

Pros: Lower power consumption
Great pwerformace for the power (half of a i7-720QM - first generation)

Cons: There are a lot of issue with video problems unresolved. See http://forum.asrock.com/forum_posts.asp?TID=1737&title=n3700-no-video-at-all or search though internet.
The board itself can not enter in the POST and you can not see any lofrom BIOS

Manufacturer Response:

Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
Please trouble shoot the mainboard whether the issue is resolved.
• Unplug the ATX power, remove all components from mainboard.
• Remove the mainboard from chassis, place it on mainboard’s box.
• Clear the CMOS.
• Test with single memory module (non-ECC, un-buffered).
• Test with onboard video.
• Connect the monitor.
• Plug the 24 + pins ATX power.
• Connect the chassis power switch to mainboard.
• Turn on the power to check if its post.

If you have any technical support inquiry, please contact us at http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://www.ASRock.com/Support/tsd.asp

Pros: Worked nicely until it suddenly dies.

Cons: First board died after one week. The replacement board died after one month. Major disappointment.

Manufacturer Response:

Dear Valued ASRock Customer,

We sincerely apologize for any inconvenience this may have caused you.
Please try below to see if its resolved.
• Clear the CMOS.
• Reseat and test with single memory module.

If you have any technical support inquiry, please contact us at http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://www.ASRock.com/Support/tsd.asp

Pros: Has a lot of nice features
Uses little power

Cons: It wont let you install any OS from USB. I tried asking ASRock and they referred me to the seller (which just tells me they don't know). Worthless if you don't have an optical drive (which in my case, I need to install an OS form USB to USB).

Other Thoughts: I would NOT recommend this product until they fix this USB issue. I RMA'd then returned all the boards, all having the same issues.

Manufacturer Response:

Dear Tiberiu,

We sincerely apologize for any inconvenience this may have caused you.
To install OS from USB, please press F11 repeatedly once system is started to bring boot devices menu.
Select the desire drive to boot.
If you have any technical support inquiry, please contact us at http://www.ASRock.com/Support/tsd.asp
We will assist you shortly.

Thank you

ASRock Support
Tech Support Email: http://www.ASRock.com/Support/tsd.asp