Pros: nice black finish, cools well, easy to install on AM3
Cons: the fan mounts are a little tricky
Update 9/12/2014 I've upgraded to an AMD FX-8350 - running at stock clocks for now. I was running my CM 212evo on it push/pull and bought a NZXT Kraken X61. With a full 15min OCCT cycle the max temp was 60c with the push/pull 212evo. With the X61 the max temp was 51c when set to "performance" - fan speed 65%. I didnt' try it at 100% because one of the fans was bad and out of balance and vibrated like crazy. I RMA'd it and installed the dark knight II with it's original fan. 15min OCCT yields max temp of 61c. I'm not going to bother to add another fan, but I would guess it would drop one or two degrees.