Pros: I bought this hard drive five months ago as a replacement for my laptop's terribly small 250 GB hard drive. The cloning process to the new hard drive went flawlessly, and has been working since then. It produces nice transfer speeds that are around 60 MB/s. Of course, five months isn't a long time, so more time will be a good test for it.

Cons: None so far.

Pros: I remember getting this hard drive at a Staples 2008 Black Friday sale for $70 new. At the time, I needed to delete my old videos to save space on my old 50 GB internal desktop hard drive. I wanted to save them, as well as all of my other documents, so the 640 GB hard drive was a great deal for me. Once I got it and took it home, it installed very quickly. I was able to transfer all of my files into it as a backup, and I even helped back up my parents' files. To this day, it is still running smoothly, never losing any files, as I keep on adding files into it.

Cons: None

Overall Review: As long as you don't move it around too much and don't drop it, I'm very sure this hard drive will last a very long time for you like it did for me.

Pros: Just plug it in and you're set. No need for a manual. Big storage, great for backing up all files on your computer. I had this for more than a year, and it is still running smoothly.

Cons: None at all. Worked perfectly for over a year.

Overall Review: I bought mine brand new at a Black Friday sale at Staples. Recertified should be just as good though.