Initially purchased to replace an older and slower 500GB Barracuda as a boot drive, turned out to be much trickier than I anticipated to install Windows 7 and not lose 700GB+ in the process (You should read up about 3TB+ hard drives and how they are affected when you install W7). I'm now just using it as a storage drive for videos/photos/games etc.
Once installed I immediately noticed how much noise it made from vibrating, luckily I have plenty of HD bays to choose from and simply moving it to another bay solved this problem. Another problem regarding noise is every once in a while it will make a faint chirp noise, if there is any background noise then it probably won't bother you, but if you work in silence like myself you may be driven to the point of insanity. I've checked for firmware updates, but apparently this exact model (ST3000DM001-1CH166) won't accept the firmware update that reduces the chirping sound.
I decided to install all of my Steam games onto the drive, and it was a vast improvement over my 5400rpm 500GB Barracuda (as you'd expect). Games such as Skyrim run much smoother now and load times have slightly dropped.
Pros: Decent read/write speeds, simple to use as a storage drive, plenty of space.
Cons: Can vibrate if not secured perfectly, chirps every so often, takes some skill in order to set it up as a boot drive and still retain all 3TB. (Obviously not the drives fault, just a problem in general with larger drives)
Overall it's not a bad hard drive, but the chirp sound is annoying enough to knock off two stars.