I have one in my main system. It is a bit noisy on full blast but provides adequate cooling at 2500rpm and is barely audible over my PSU or case fans at that speed (which aren't noisy in my opinion-fan controller on the case fans).
All in all, not a bad cooler but I probably would try the lite version as it is almost 1/2 the cost and just as effective according to the reviews I've read.