I just got one. So far it works great.
It comes with PowerDVD player, Veritas Backup and ShowBiz which is a neat DVD editing program. I'd recommend Nero over the Veritas Backup software though.
It's one of the few USB ones out there for the price.

Also, you need DVD+R,DVD+RW media only (or CD-R). DVD-R is much cheaper ...but it won't use it

I've just recently perfected copying my personal DVDs onto 2 DVD+Rs.