Summary: I mainly chose this fan because I wasn't sure how much CFM I wanted or how loud a large CFM would be, and because my motherboard at the time didn't have the capability to control fan speed. The highest setting is pretty loud, as can be expected. Medium is much quieter and still moves more air than any case fan I've ever owned before.
Pros: This fan can move a ton of air, and is about as quiet as a fan moving a ton of air can be.
Summary: Pros: Blue, Bright, Easy install, switchable speeds, quite Cons: None so far Other Thoughts: I do like that they come with both a 3 PIN PWM system board connector and the ability to attach to the Power supply using a standard peripheral connector. However when connected tot he system board, it will always read top RPM's no matter where you have the manual switch set to. It is nice to be able to always run them at middle speed and still have no heat issues.
Summary: Love this fan! I use it as the 80mm exhaust fan on my micro atx gaming computer. Very bright, and might be a little too bright if used for a fan on the front of the case that was not covered. But for being on the back of the case it is perfect. It lights up the entire inside of the case with a beautiful blue light. I also have the 120mm model hooked up to the intake fan on the front of my case mounted to a water cooling radiator.
Excerpt: I ordered two of these fans to help cool down the inside of my tower while I do video processing. I like that the fans have a switch to control the speed. I have them both at the highest setting and the noise is very light. They are doing exactly what I needed them to do.
Summary: Ordered the 80mm version due to it being swappable to the CPU and case and I must say Antec did not cheap out on this fan. 4pin connecter for you people with an older model PSU, 3pin connector for your Motherboard, and a switch with 3 speed fan settings. The light itself is blue and I could add an extension to it and use it as a lamp for the room due to its brightness.