Summary: Before purchasing I read some reviews most I saw said the 812 did desent in benchmarks. I ran it with the included fan for a bit. Needed to switch fans (Corsair SP120)temperatures were a little high before OC.
Summary: I broke one of the stand-off legs during installation and the unit has been sitting on the bench waiting for the replacement part from Cooler Master. It has been shipped but has not arrived yet. The whole unit seems of very good quality so I guess I must have used too much torque when tightening the nut to the stand-off leg. So use tightening tools lightly during installation.
Pros: Very impressive looking unit
Cons: Pictorial instructions could use more descriptive texts