Summary: Had my pair returned for a more silent fan with the same air flow. (CoolerMaster Sickleflow)
Pros: It pushes a good amount of air, and is a decent price.
Cons: The blades are orange, but because the led's are white, the only light shown into the case is white, which I don't think is what most people intend. I ordered two of these and both started grinding right out of the box, and also came with a loud high pitched whine.