Pros: Bought 5. 3 for case and 2 for push/pull on my hyper 212 evo.
Keeps CPU cool, air flow is good and the LED's light up my case in a perfect light red hue through my side panel window.
No coil whine in my experience.

Cons: Can be a little noisy from fan blade design if pushed above 1300 RPM.
Cables could be black instead of clear to match fan/color theme.
Screws are absolutely horrific (and could be black instead of silver to match black cases) and strip way too easily. Had to use my own fan mounting screws.

Other Thoughts: I would definitely recommend these fans. The price is amazing and other than a few flaws that can be fixed they perform beautifully.

Pros: The LEDs are nice and bright, pretty standard fans, they aren't very quiet but that also may have to to with the fact I have 6 of them in my case

Cons: Not much just note that of you are looking to mod you case with other LEDs I recommend going with one's with out any lighting.

Pros: Fans are great
They look good
Lots of airflow

Cons: Loud, but in a different way - not like in the motor, just the air flowing around it

Other Thoughts: I have two on my cpu cooler and 3 in my case, everything runs cool.

Pros: Lasted 3 years so I would say these are darn good fans.

Cons: None.

Pros: great airflow and bright L.E.D's

Cons: case vibration

Pros: pushes a lot of air. not too loud. just the sound of the ginormous air flow. the motor isn't really whiny which I was happy with. led is pretty nice.

Cons: none really. kinda big but maybe it's because my car is so small

Other Thoughts: for the price it's the best deal. I hadn't had any problems. I also could not care about sound so if you hate that I would recommend something sorry of quieter. I can't imagine how loud it would be ruining more than two. still good product

Pros: For $5, I couldn't beat it. The red leds were nice and it pushes a lot of air.

Cons: Now that I have it installed in my system, I would rather have spent the extra $5-10 on a better fan. These especially noisy despite what cooler master says about it being 19dBa. It is not 19 decibels, probably twice if not more than that. The fan cables were especially short. They aren't sleeved, look really bad, and won't even reach my motherboard.

Other Thoughts: If you don't mind the sound, these are fine. When I was picking the parts for this system, I though I wouldn't care about how loud my system would be. However, these make the system almost unbearably loud, to the point where I'll probably have to buy extensions to reach my motherboard so I can sacrifice a bit of airflow for a quieter system overall.

Pros: Moves air pretty well.

Cons: LEDs look lame. Got two and both are way way way louder than advertised.

Other Thoughts: I just keep these fans on like 30% air flow unless my CPU starts heating up. I suggest to just go with the Thermaltake Pure LED series, not quite as much air flow but they look great, and they're whisper quiet even on 100%.

Pros: Fan can push a decent amount of air.

Cons: These say silent but after about 3-4 months they are starting to make more noise than the air they are moving. It is like High-pitch grinding noise (sleeve type fan) and has gotten a little louder 4 in more months. I really don't care too much about noise but the two I have fairly loud now after 7-8 months of frequent use.

Other Thoughts: Fairly cheap price so don't expect too much. They are good fans though.

Pros: High air flow

Cons: There is absolutely nothing silent about this fan. The noise it makes is a whining that is unbearable. Keep looking if you want a "silent fan". I'm returning it.

Other Thoughts: Not recommended.