Summary: I've used this in a few basic AM3 builds and to replace a handful of broken stock coolers, and I don't have any complaints. It does a good job keeping temperatures where they ought to be and is more quiet than the stock AMD fans. If comes with a dial to manually change fan speed, but for what I was using it for, that wasn't a necessity. It's a good cooler at a good price.
Summary: This is ok if your needs are basic and either you didn't get a stock cooler or yours failed. It doesn't perform a great deal better than stock cooling though. I wouldn't recommend it to overclockers. I bought this a long time ago with an OEM CPU, it works for my needs.
Summary: After installing this sucker I got significant improvement over the stock cooler from AMD usually runs 10C cooler on full power, 5C cooler when set to Medium power and about the same temps with this fan set on the lowest power setting. Overall very glad I got this and an awesome buy for the price!
Summary: Cools better than the stock cooler that came with my AMD 1055t thuban. I actually disabled 2 of my six cores with the stock cooler due to the loud noise from the 70mm fan. This cooler has significantly lowered noise levels while slightly lowering my temperatures. I did not extensively test the cpu but ran prime 95 and was happy with the brief test results.