Pros: This is so stinking quiet. you have to put your ear on the case to detect any noise vibrations. I love it

Cons: cant think of a thing

Other Thoughts: absolutely

Pros: Mounting is the best I've seen for being secure
no wobble
super quiet (seriously had to check to make sure fan was running)

Cons: ULTRA HUGE
could only use one (combo of this device and my ram being too high G.Skill Trident Z)
a bit expensive

Other Thoughts: This product is a bit overpriced in my opinion but not by much. If you can wait for this unit to be on sale then do so but if you want the absolute best that air cooling and money can buy this in my opinion is the apex of air cooling now and into the future. It's quiet, cool, and MASSIVE! I had to order a 120x120mm fan (Noctua NF-F12 PWM) to use in place of the second 140x150 fan that comes with the device as the second just would not fit above my ram. This is a combination of my ram selection, motherboard ram placement and the noctua nh-d15 being so huge. But if I had normal height ram it would have fit with a slight lift of the second fan and my case would have closed fine. You can use it with one fan but I wanted the extra airflow in the case anyway and the Noctua NF-F12 PWM is the same color scheme and is another primo noctua product. Overall this is a 5/5. I didn't deduct any points for being a bit expensive as that is very subjective. Also this is the top of the line and in my opinion you can't buy better air cooling. So price should be a bit higher than say a hyper 212 evo which I was using previous to this. Temps dropped over 6 degrees when my i7-6700k is idle. Very very good cooling from this beast. Would buy one again if I needed to but I'm pretty sure that this cooler will be good well into the future as Noctua seems happy to provide adapters and kits well into the future for their products. Also I emailed noctua support about the fan size suggestions for the second fan and to see if my existing fan clips would fit, they responded withing 3 hours of me sending them an email. This is rare today. I have had bad experiences with both Corsair and Gigabyte when looking to have simple questions answered about their products by support.

Pros: -Silence
-Easy to install
-keeps my 5820 with 4.4ghz oc cool

Cons: -size

Other Thoughts: - I would buy it over any 240mm AIO

Pros: I taxed my i7-5820k for over an hour and the d15 didn't break a sweat keeping it cool.

It's cosmetic but it's so massive that it looks badass if you have a see through side.

Cons: I had to raise the second fan a couple of ribs on the heat sink to make room for my ripjaws ram. Standard ram isn't an issue I read.

Pros: -Hands down the best air cooler on market.

Cons: -Size (make sure your setup/case can accommodate the dimensions of this cooler)

Pros: - Dropped my load temps by ~10 degrees over previous aftermarket cooler (Cryorig H7)
- Quiet
- Using pull-pull configuration, RAM is still accessible without removing anything

Cons: - So large. First PCIe slot unusable. Fortunately, it's an x1 that I don't need.
- Weight. It's a mental concern... not sure if it's an actual concern.

Other Thoughts: - Noctua has compatibility listed with various setups on their website. Make sure you check. If it fits, it is recommended!
- Asus Z170-PRO is able to fit this in a pull-pull configuration with the back fan mounted a little higher than middle one to avoid touching rear I/O hood.
- Able to be mounted in Fractal Define R5 with motherboard already installed.
- Mild 10% overclock (4.4Ghz @ 1.2V (1.265V measured)) on 6700k. Min recorded Idle temp 21C. Normal load temps ~62C max (h264, Realbench Benchmark). Stress temps ~72C max (IBT, Realbench Stress)

Pros: noctua
two fans
not to hard to install

Cons: some people may find it ugly if you have a case with a window
kind of tall make sure it fits in your case especially if you have tall ram and want to use both fans (fits fine in my cooler master haf912)

Other Thoughts: works great even with an over clock dont let people tell you you need an aio if you overclock the fact is this keeps up with some of the best aio coolers and it blows the entry level aio coolers out of the water its only 80 bucks you just spent like 370 on your cpu so dont go cheap its way over kill if your not over clocking

Pros: The noise is very small while the performance is still good,

Cons: None

Pros: i7 4790k - stock 4ghz idles around 20C, prime95 for 5 mins 64C max

Cons: not really an issue, but it took me forever to plug the two CPU fans in as there was little to no maneuvering room in my case, which is full atx.

Other Thoughts: I would recommend this product to others.

Pros: - This thing has the same performance as every water cooler at the same price point without all the tubes and and mess
- Very easy to install, the easiest cooler I've ever had to install
- Extremely quiet, my computer sits under my desk and I never hear the fans, sadly I do hear my gpu fans at times

Cons: - Its huge, though I suppose it has to be to cool so effectively