Pros: It is a very attractive replacement GPU cooler. It seems to work pretty well, and comes with all of the things one needs to mount up to most cards, including 8 little RAM coolers. It's larger than it looks in the pictures. Has two fan settings, high and low, via cable.
Cons: Not really cons, but it's not really meant to cool ultra high end cards. I have it on an older HD 5870 which is a bit above it's pay grade, but it keeps it under 90 on the lower fan setting. I guess what I'm trying to say is don't expect to keep a Fermi at 40c with it. On the high setting the fan is rather loud. Again, to be expected from the high setting.
Pros: Overall a very good quality product. Heatsink appears to be very well made, and they include everything you need for a complete install.
Cons: The 4 small springs they sent were tangled together pretty badly. I literally spent 15 minutes trying to separate them, and almost broke (or badly bent) them in the process. Not enough for me to deduct a star, but still annoying.
Pros: I bought this to replace the twin frozr on my R5770 Hawk (fan was dead). I had a spare 120mm fan pointed at the card, worked better than the stock haha. It was idle at 43C gaming was around 70C, With this cooler it was at 39C idle and 62-63C during gaming. Pretty awesome for $26.00
Cons: Like everyone else has said the thermal paste is not of good quality. I had some Arctic silver 5 lying around so i used that instead, also on the memory heat sinks. Works great.
Summary: Installed it on a XFX 9600GSO and droped temperature from 105 celcius to 70 celcius under load. Ram heatsink could use a better glue though, make sure they're really clean or else they won't stick. Fan very silent (I'm running it full speed) and easy to install.
Pros: Threw this on my GT240 which was breaking into the 140 F range during any game. Now after a 30 minute install and an hour of torture tests I never saw it break 110. Ran Crysis at it's highest for this card and it stayed at 104 to 106.
Cons: Non. The main reason it took 30 minutes to install was that I had dropped one of the springs and spent 10 minutes crawling around on the floor for it. Just keep track of the parts and I'm sure your build will be just as easy as mine.