Actually the Mugen 2 is better then the CM Hyper 212+.
The Mugens performance is comparable to top-end $60-80 units.
It comes with a silent high-quality fan/ superb performance with two fans.
If you do get this make sure your case can accomodate it cuz it''s big.
Installation can be a pain cuz of it.http://www.silentpcreview.com/article961-page1.html