Cooler seems good, software is nice, do not use included thermal paste
I purchased the corsair h100i v2 in january of 2017 from another retailer. Initially i was pretty happy with the noise and performance of the cooler, and the software is a really nice touch for tweaking a balance between the two. The use of the cooler was pretty much drama free until this week (march 2018) when i noticed the computer would always have the fans running full blast while i was doing anything, including playing games which wouldn't even raise the fan rpm in times past. I contacted corsair when my temps reached 87c and told them i suspected something in my unit had gone bad, perhaps the pump. After a little back and forth troubleshooting, the rep question me to try replacing my thermal compound which according to him is not designed to be used for more than a year.I was skeptical, as i have never heard of thermal paste going bad like that, definite not in a little over a year. I tried anyway and removed my cooler to find some old cracked grey paste on my cpu, which had clearly deteriorated to more of a powder then a paste. I removed that and applied some noctua thermal paste i had and reassembled. The results were very good, my idle dropped from consitently 45c+ to barely above 30c. My peaks now never eclipse 65c even in cpu intensive games.Overall i am happy with the product, however for $120 i feel having to replace the included thermal compound is ridiculous. Either corsair should include a tube of some higher quality compound or they should not include any at all. If they truly knew their thermal paste only lasted a year then that is very irresponsible. Time will tell how well this cooler continues to hold up. I had an h50 for about 5 years in the past and it never went bad, so i have the same hopes for this cooler.