Pros: Keeps my 1.3Ghz overclocked 5960X under 60 Celsius under heavy load.
Doesn't Leak
Easy Setup With Color options for main block
Dual Fan .
Corsair!

Cons: None Really

Other Thoughts: Haven't regretted the purchase at all!

Pros: Easy install. Most difficult part was deciding how to integrate it with my EVGA 980Ti hybrid which is liquid cooled as well. Fortunately, the Corsair 900D has so much room (480mm), I could install the video card radiator which takes one 120mm, skip one bay and install the H105 in the remaining bays.

Cons: if you are attempting to make a neat build, the glossy cheap looking 3 pin pump wire is difficult to hide or clean up. I would suggest as a future revision, have a 3 pin wire plug at the pump. Provide a 3 pin cable for those would do not care what it looks like but give me the option to install an individually sleeved 3 pin cable to make it look nice. I have to leave it. I cannot mod it as i do not want to invalidate the warranty.

Pros: Relatively easy to install for a liquid cooler. (my first time trying liquid cooling)
Keeps my CPU running ice cold even over clocked.
Looks cool.

Cons: Wow the fans that come with this are loud. When I first booted up my PC after putting everything together I thought something was wrong. Sounds like a plane taking off.
The cooler is definitely worth the buy, but when you buy it just go ahead and buy new fans at the same time and save yourself the hassle of installing then swapping them, because you're going to need to.

Other Thoughts: At the request of another reviewer, I bought two of these:
http://www.newegg.com/Product/Product.aspx?Item=N82E16835553002
COUGAR CF-V12HP Vortex Hydro-Dynamic-Bearing (Fluid) 300,000 Hours 12CM Silent Cooling Fan with Pulse Width Modulation
To replace the super loud fans. Now my PC runs completely silent (seriously, if I monitors are off I have to double check whether or not the computer is on). With those fans on this cooler I am 100% happy. If you're going to buy this cooler (and you should), buy two of the above linked fans (or similar) with it.

Pros: Quality cooler with a nice look on the tubing and provided fans. I switch out the fans for the Sp120s and the cooler/pump/fan noise is at a minimum - but I am also using FD R4 case, so mileage may vary, but the case sits on my desk about 3 feet from my face... lol so take that for what its worth.

Cons: None yet - but not having an H115 cant really be a con right?

Other Thoughts: Cooler gets it done.

Pros: Just a typical good budget liquid cooling system. Cool my FX-8350 from ~38C(stock fan) to ~19C during the typical loads. It's my first liquid cooling system.

Cons: Really loud(for like 5 seconds) when boot up.
Pro-Intel.

Other Thoughts: It's my first liquid cooling system. Took me like 3 hours to installed it, because the standouts were kinda loose before putting the waterblock&screws in, and I get confused for 2 hours. Then I try the next steps and everything works out perfectly fine. Stoopid meh. ლ(ಠ益ಠლ)

Pros: Stuffed this bad boy in a Corsair 250D case. Initially, I read it wouldn't fit in the 250D, challenge accepted. If you plan on using the fans that came with the this (standard 120mm fan holes pre-drilled) in a 250D, there's almost no way it will fit. I used 2 Thermaltake slim lunar fans with the rubber corners and they move plenty of air for my A10-7850k over clocked to steady 4.3Ghz(could go higher but no necessary.) Incombination the Asrock FM2a88x-itx board allowed enough space for this cooler.

So, shorten the screws (pancaked the fans between the case and radiator) & use slim fans to fit this in the 250D. Having that said if you want a bolt-in liquid cooler in a 250D, get a 100i. All said and done, works great.

Cons: Occasional air bubble heard going through the pump? No really a con though. I bought this for its purpose, to cool the cpu.

Other Thoughts: Before installation, I ran the pump (full power pwm) and pitched and leaned it to "prime" it and purge the air bubbles. Did this with the radiator elevated higher than the pump. Occasionally it will catch a bubble at startup.

Pros: Stuffed this bad boy in a Corsair 250D case. Initially, I read it wouldn't fit in the 250D, challenge accepted. If you plan on using the fans that came with the this (standard 120mm fan holes pre-drilled) in a 250D, there's almost no way it will fit. I used 2 Thermaltake slim lunar fans with the rubber corners and they move plenty of air for my A10-7850k over clocked to steady 4.3Ghz(could go higher but no necessary.) Incombination the Asrock FM2a88x-itx board allowed enough space for this cooler.

So, shorten the screws (pancaked the fans between the case and radiator) & use slim fans to fit this in the 250D. Having that said if you want a bolt-in liquid cooler in a 250D, get a 100i. All said and done, works great.

Cons: Occasional air bubble heard going through the pump? No really a con though. I bought this for its purpose, to cool the cpu.

Other Thoughts: Before installation, I ran the pump (full power pwm) and pitched and leaned it to "prime" it and purge the air bubbles. Did this with the radiator elevated higher than the pump. Occasionally it will catch a bubble at startup.

Pros: Pros:
-Swapable face-plate
-Fairly easy install
-Good price
-Works as advertised

Cons: The only complaint I have is there wasn't the best documentation on which standoffs to use because I had a scary mixup where I used the incorrect ones for the LGA2011 and the CPU turned off on first boot from overheating. This was mostly user error but it could have been labeled more clearly because its hard to determine off the user manual which standoff is which and they throw them all in the same bag.

Pros: Works pretty good.

Cons: I had to re-seat it three times to get the performance I was looking for. I slowly torqued down each screw a quarter turn moving in a clockwise motion.

Other Thoughts: Plug the heatsink pump into CPU_FAN, and NOT CPU_OPT. I cant stress this enough.

Pros: Inexpensive, fast delivery, great quality, amazingly cool temps, fast and easy install.

Cons: BE SURE YOU HAVE YOUR ORIGINAL BACKPLATE IF YOU USE AMD!
only comes with a new Intel back plate. Intel users be warned... it has a habit of stripping out the threads. So use caution tightening.
Amd users.... you can use an impact gun to tighten it down... it won't strip.
Also. Gunmetal stand offs are for intel. Black are for amd. They're in separate bags. For amd when you attach them to your back plate there will be play between them and the mobo, bit when you seat the heatsink it seats perfectly.

Other Thoughts: This is the second one I've had. First was installed on an ocd q9300 from Intel and never had a heat issue. So when I handed down my old pc and wanted to make a new one. I picked up another one of these bad boys and once again, it did exactly what I wanted. With the fx series processor over clocked to 4.6ghz I'm sitting at about 9 to 12c and after 8 hours of prime95 max temp was 49c. If you're looking to over clock or multi box and want a great water cooler on a budget, this is the way to go. Install takes about 5 to 10 minutes for an Amd and about 2 minutes less for an Intel.
There's been a lot of talk about the fan noise and yes, it's noticable. But let's face it... most of us are gamers.... We use a head set... while wearing mine yeah I can hear them. But it's hardly a distraction.
Also, use the Y header for the fan control so you can adjust both fans either in bios or using your motherboards fan controller. It helps keep the sound down quite a bit.