Pros: - Keeps my system 5-8 degrees cooler than a Cooler Master H212 Evo.
- other reviews says the fans are loud, but Corsair Link has three built in profiles (Quiet, Balanced, Performance) that will manage fans speeds for you. At quiet and balanced, fans are nearly silent. Of course you can always change fan speeds through your systems fan controllers, and not Corsair Link.
- sturdy tubes, high quality radiator

Cons: - the motor occasionally makes a gurgling sound, but I'm associating that with the the system running from cold start. Motors noise goes away once it's heated up.
- TOO MANY CONNECTIONS. One USB, one CPU Fan connection, and a sata connection.
- RMA'd one for replacement because I couldn't get it to power on. Took me forever to realize power to the pump comes from the sata connection, the USB or CPU Fan connection. No mention of the sata plug in the instructions.

Other Thoughts: I would recommend this to a friend. Just be mindful of all the connections it needs, and know that it is powered from the sata connection.

Pros: Sleek design
Multiple mounting options

Cons: Causes lots of unacceptable case obstructions in smaller cases.

Other Thoughts: I bought this after a Corsair rep told me it will work fine in my Corsair Obsidian 350D. The radiator just barely fits in the top mount, contrary to the instruction manual, I had to mount the radiator and fans first otherwise the mobo doesn't fit in the case. The radiator extends into the top 5.25" bay, so you lose that when top-mounting. When mounted with the radiator pipes facing the front of the case, I lose access to both of my 5.25" bays. When mounted with pipes facing the back, the rear case fan no longer fits. Neither option is acceptable to me because I need all of the 3.5" bays and at least one 5.25" bay. I am now forced to return this item and eat the restock fee.

Pros: Comes with everything you need. Works really well, I have it on a 6700k that sits steady at 40C

Cons: none.

Other Thoughts: remember, plastic threads! do not over tighten : )

Pros: Love that my system now runs at 30C instead of 70C. Easy setup and installation.

Cons: This thing is HUGE, so you really need to have a case that can handle the massive radiator.

Pros: -Fits well in Corsair 450D case
-Looks nice
-Corsair 1-800 Call Support is not outsourced (refreshing) (2 eggs just for this reason)

Cons: -Failed after exactly 6 months of use on an i7-5820k at stock speeds

-Sudden pump failure nearly fried my CPU, fortunately the Intel thermal safeguards kicked in and saved me.

-Ran at 30C idle and 50C during gaming (CS:GO) when it did work, which, come to find out is actually horrible for this cooler. I think this was a sign of a poor quality pump, since the newly installed RMA replacement runs around 20C-22C at idle and 30C-35C under the same load.

-When your CPU cooler fails, it's extremely inconvenient because it essentially renders your PC useless. That's why I opted to do an Express RMA with Corsair, in which you pre-pay for a new CPU cooler up front (at over retail mind you) and then the charge is removed when they receive the old one. The problem I had is that they couldn't complete an Express RMA for me until my RMA ticket was approved, and my ticket sat in a pending status for 2 days. When I called a second time to expedite this process since it was now Friday, and their customer support closes for the weekend and actually EARLY on Friday as well, they still said that despite trying to "force it through", they still couldn't do it, which meant I would have to wait until Monday to start the Express RMA process. To add insult to injury, my RMA ticket was approved at 5pm Friday, but customer support closes at 3pm, and calling is the ONLY way to do an Express RMA. Very frustrating, because this means more downtime, and in my eyes, unnecessarily so considering I was willing to pay over retail for a new unit to be expedited to me.

-Again, to add insult to injury, I was required to pay for shipping for the defective unit back to Corsair. 6 months of use out of a CPU cooler I paid $139.99 for, and I have to pay for return shipping? That's extremely poor form. With my reviews, I try to be fair to all parties, and assess the situation from both sides. I would have overlooked a lot of the RMA issues considering the people I spoke to on the phone were very polite and courteous (something I hold in high regard), and chalked it up to a busy schedule for them. However, to find out after the fact that I also need to pay to return the defective item back to Corsair tilted me the opposite direction. It was $12, not life altering in any way, shape or form, but it's not about the money, it's the principle of the matter. I'm already inconvenienced with a defective unit, I'm inconvenienced again by being delayed an extra 2 days because of their processing formalities, and I'm inconvenienced having to tear apart my system replacing an item that I didn't think I would ever have to remove, and then my cost of ownership for said item goes up because I get taxed another $12 to send the broken thing back? That's the straw that broke this camels back, and really left me with a sour taste in my mouth about the entire experience.

Other Thoughts: In hindsight I'm glad it failed, because otherwise I would have unknowingly had to live with a sub-par CPU cooler that I paid a premium price for. Of course I'd rather just have the product that I purchased work out of the box as advertised the first time, but I think that's asking a bit much these days. Besides, a company couldn't guarantee a 0% failure rate, just like they couldn't stop the weather from raining, but what they COULD do is at least hold an umbrella over your head if it does rain. Corsair failed to do that in my eyes. Maybe on the next one...

Pros: -Easy to install, this was my first DIY PC.
-Works great.
-Corsair Link is easy to use.
-You can change the LED color if you're into that.
-Thermal paste comes pre applied(other reviewers state just to leave it on, seems to work the best)

Cons: -None
-Others suggest swapping out the stock fans for noise concerns. I don't notice the noise. Using thermaltake suppressor F31.

Other Thoughts: - Would recommend to all, was going to buy the EVO but decided on liquid cooling instead.
-First time building my own PC and I had no trouble whatsoever.
-Worth the extra money if you will be turning to a liquid cooling solution later on.

Using on an Skylake I-5 6600K

Pros: Keeps my AMD FX 8350 vary cool tubing looks nice and the Corsair logo looks great. I also like the link software it allows me to keep tabs on all of my temps.

Cons: Installation manual sucks I took one look at it and threw it away for someone that didn't know how to install one of these this manual would not help them at all.

Other Thoughts: I would recommend this to my friends as this is how I ended up getting this in the first place.

Pros: - Keeps my 5820k temps at bay (overclocked to 4.2ghz)... never goes above roughly 55c even at 100% utilization during video rendering.
- Easy to install and use. No complex setup needed.

Cons: - This thing is HUGE; I cannot overstate this.
- Make sure it will fit in your case before buying.
- Stock fans are garbage and loud... i mounted two 140mm Cougar fans instead that are much quieter.

Pros: Very quite, works great with an AMD 9590, the Corsair Link interface is pretty cool when also paired with the HX1000i.

Cons: None so far!

Other Thoughts: Cool LED color changer for the Corsair light. First liquid cooler I have used. Super easy install and setup. I would buy again easily.

Pros: Looks great, somewhat easy to install and quiet. Adjustable lighting is a nice feature. A bit pricy in cdn$ compared to us$.

Cons: Hardware not really clearly labeled for your cpu type. It says stainless for Intel yet everything was the same colour hardware. But easy enough to figure out. The standoffs that mount to the motherboard will be loose once tightened, this is NORMAL.