Pros: It works very well. I replaced the pathetic aluminum heatsink on my reference Radeon 7950 with the GC-VGA01-02 and it dropped the load temps from 80C down to 53C. The VRMs had an equivalent drop in temperature. If you need to cool your 7950 or 7970 this is the heatsink for you.

Cons: It is a little tedious to attach the heatsinks to the ram chips and mosfets. It took about an hour from start to finish.