PROPS. The fan does its job well: i got -10C temperature drop comparing to the regular Intel cooler. With this cooler I was able to overclock my Q9550 to 3.4Ghz (stable). Yes, it gets very hot at heavy loading (~85C) but this is OK since its maximum temperature is 100C. At normal loading CPU heats till 55C that is good for air cooling.
CONS. Holders that lock cooler on the MB are too weak. I was able to lock only two of them, others are in fact not used. Though, looks like this doesn't affect colling effectiveness.
HINT. Before installing this coller I strongly recommend to remove MB from the case. Radiator covers lockers so it's not easy to access them when mobo fixed in chasis. Also, keep in mind that this cooler makes air flow in your case totally different that may affect cooling of other devices (like SB). So think twice before choosing orientation of the fan (you have 4 choices).