Summary: I've purchased two of these 500 gigs drives almost 2 years ago. Kept the first one, which is still running flawlessly even though it spent the past 6 months being carried in a backpack with no case or any other protection. The second one was a gift for my brother and it showed some physical issues after 5-6 months of use (no software would repair it, and the clanky noise is there).
Summary: I bought it to replace my laptop hard drive that crashed. Took my laptop and this new hard drive to a local computer repair shop only to be told that not only was my current hard drive toast (which I already knew) but that this replacement hard drive was also toast. To say I was disappointed would be putting it mildy.