Excerpt: I have two of these. One I have been using for over a year as an external back-up drive. The one just purchased is the main drive in my laptop. These drives travel a great deal and have performed perfectly so far.
Summary: This is the second WD Black I've purchased, the first one was a 500 GB, I put that one in my MBP I wanted more drive space so I put the 750 GB in. I've had the 500 GB for over a year, but still in good working order, I put the drive aside as a spare just incase of a drive failure. The 750 GB I've had now for several months and still going strong. Really to early to tell how long this drive will last. I should be able to get many years use out of it.
Summary: Top quality WD drive. The 5 year warranty is a clue. Runs great in my Samsung laptop. The 3 year old POC hard drive that I replaced (rhymes with "deathstar" and sounds like "Hibachi") never gave any indication of failure--no noise, no lost files, no slowing down. It just wouldn't boot up. Even the computer shop pros couldn't get anything off from it, so it was a complete re-do of everything on the computer.
Summary: I purchased this for my 2010 Mac Mini after the factory Hitachi drive failed. It definitely seems faster than the factory drive which was always a little sluggish and became nearly unbearable before it failed. Oddly, it took a week or so before I noticed the improvement in performance as it was a little sluggish as well after I had OSX installed.