Cons: Since it was so cheap you can imagine the quality of this item. If you are lacking in the imagination department just think of those toys you get for trading in your tickets at the arcade (imagine you have less than 20 tickets) its about on par with the manufacturing of one of those plastic army men with the parachute.
Pros: Works awesome for pulling the hot air out of the case, helps to keep my heavy rig running nice and cool, coupled with a 70mm dual fan PCIe set up, also keeps the hottest piece of hardware, (the graphics card) Nice and cool.
Pros: Quiet, does what it is supposed to. Lowered avg. temp by about 10-12 c. Even during long gaming sessions, fan is still exaughsting cooler air, keeps system cool enought where other auto temp regulated fans in my case do not have to increase RPM's to cool down, this in return keeps case super quiet.
Pros: Looks good, doesn't buzz so far, feels like it moves a lot of air.
Cons: The mounting has a lot of play even though the screw is tight. Wouldn't recommend it for computers that travel much. Fan hole inside is heavily obstructed by plastic slats that should probably be snipped out. Rather noisy, though it's an even whoosh not an annoying buzz or rattle.
Pros: Putting this next to my EVGA card brought its core temp down from 72C to 59C. And the processor temp went down another 10C, probably because the whole inside of the case is way cooler - the VGA card was heating the whole case up, now the hot air gets immediately shipped out