Pros: I have to highlight the fact that you need to make sure it fits your case. my new case Rosewill Blackhawk clears this by 1/2 inch, after I removed the side panel fan. My old case was a little smaller Cougar Solution, I didn't try it on but I guarantee you it will not fit. I use this on a fx 9590 and it seems to never go over 44 c on bf3 ultra settings. idles my cpu at around 20-25c. comes with brackets for additional fan to configure push/pull. I haven't used this but...
Cons: it will block 2 ram slots closest to the cpu if you use fancy heatsink ones, but not if you used regular ram without heatsink, or low profile ram
Pros: This cooler impressed me more than I expected. I installed this on a i5-4570K with the provided coolermaster thermal paste and I got idle temps averaging 28 C, on intel burn-in testing on high setting, using 4gb ram and 100% cpu load it only reached 38-40 C on all cores, 20 iterations at 34-35GFLOPS. The vapor chambers in the cooler really do work, other fan coolers this large can't cool nearly as well as this bad boy.
Cons: Had to switch the fan to the other side of the cooler in a pull config because the fan was touching the memory, which doesn't look great in a customer build.
Summary: I'm still happy with the coolermaster heatsink itself, extremely high quality.
Pros: The cooler was easy to install. I took my time and 'silvered' both the heatsink cpu surface and cpu surface with some Arctic Silver 5 grease, then just a small line parallel with the core layout of the CPU.
Cons: I wish the fan was higher quality. It is a PWM fan, which is nice, but I did notice a tick tick vibration it was causing through the heatsink. I replaced it with a Noctua NF-F12 PWM fan which is much better. Needless to say , I should have then looked at going with a Noctua cooler+fan combo to save some $$.