Summary: I have this totally new build and my first time buying an aftermarket CPU cooler. The thing I like best about the Cooler Master GeminII S524 is the pipes touch the CPU. I noticed the others don't do this. There may be some that do but I didn't see them. The fan is whisper quite.
Summary: This thing is HUGE, but it fits just fine in my Cooler Master 430. My only complaint is that, in my particular case, it is too large to allow a 120mm fan to be attached to the top vents, but that is not the fault of the cooler.
Summary: Pictures and videos don't do this thing justice. It's massive, and even better it came with thermal compound. The only trouble with it is the installation.. it's a little bit awkward but it works and it stays on with no issue.
Summary: Cooler Master makes a number of these in different heights and configurations. They all work well, but you have to make sure they will fit your motherboard and your case. This one has the fan flat, parallel to the motherboard, so it will fit in most cases.