Pros: Comparable to Water Cooling, Quiet, Keeps Proc Cool.
I went to Microcenter and they had this heatsink on sale. Very easy to install, though you do need to have the processor clamp installed to install this. It is currently keeping my I5 2500k OC'ed at 4.2GHZ very cool, actually almost as cool as the water cooling setup I was using. Maybe a degree or two warmer!
I paid for piece of mind and now I do not need to check my system once a week incase a leak has sprung. I do like the idea of spending thousands of dollars on something to have it get ruined by water because a clamp broke or something.
Highly recommend this heatsink.