Summary: Great looking and good quality. Not all to well at moving air but its enough to keep your case cool.
Pros: Very well made with high quality plastic. LEDs look good and are nice and bright.
Cons: I did have issues with the screw holes like others have had, although drilling wasn't needed. The plastic is strong enough to just to hand screw/force in. All it took was a little elbow grease and they fit perfect.
Summary: These are good fans for the money, you get good value for the price. I wanted some blue LED fans to replace my stock CM fans. These were kind of hard to get in, but they eventually got in there. I like these fans, but will probably sped the money and get some better ones next time.
Pros: This fan is clear, has blue LED's, and moves a good amount of air. VERY QUIET, CHEAP!
Cons: I wasnt expecting the LEDs to be on the cross support thing on the back but they were. They dont look as good as antec's tri-cool or apevias fans. They were hard to screw in, but I got them in eventually. They dont feel like they move a ton of air.