Summary: Used in a HTPC build with Gigabyte Micro board. It has been in use for 2 weeks and CPU temps are 24C at idle. Full loads at 48C. With board control I don't think the fan is noisy at all. Unless your going to put right next to your ear. Inside my Silverstone case you can't even hear it.
Summary: Great fan but you will be surprised by how huge it is compared to your stock CPU fan. Keeps CPU around 30'C on idle wich is perfect. Easy to install you basically just need a Phillips screwdriver.
Summary: Had this for 3 days now and its doin a great job, cpu heat went down from 59 C to 37 C. Just be carefull on install, you have to find right direction before you lock it down. My games and overall pc is doin alot better.
Summary: I installed the heatsink by itself without actually using the included 120mm fan. I searched for a good standalone heatsink for a good price - there is nothing out there. Comes with little noise-cancelling pads to ensure fan is quiet if used. Temperatures are great - even without the fan installed. The only downside was that it was quite difficult to install as the manual was small and unclear.
Summary: Amazing, for the price it has it does surprisingly well, but obviously much better than stock, Got temps from about 18-29 degrees on idle on a brand new 2500k. Took off a star because installing the cooler was a bit tricky and the manual was a bit hard to understand.