I've had my SanDisk cruzer for a year and a half now, and have never experienced a single problem. It has worked with every computer I have ever tried. I use it for school, mostly word, PP, and excel files so I don't need that much space. However, recently I purchased a new computer and it was incredibly helpful in gettign all my files trasfered.It is very durable, no scratches after all this time. Once I even accidently send it through the washing machine. Afterwards I let it dry for a couple of days, and it worked just fine. Not that I would want to repeat that.One negative point . . . the cap begins to crack after a couple months of use making the fit not as tight. It does come with two extra caps, but if you've been using one for as long as I have that's not enough.Overall, a great product . Once you buy one, it will be hard to believe that you could ever live without it. I take mine everywhere.