Pros: Leave this on your key ring when passing through boarding inspection, and the TSA guys grab it up thinking they've got a job to do. "But it's only a USB drive", I say. Oh, an it works fine and I am not so likely to loose it on my cluttered desk.
Summary: DON'T BUY THIS unless your looking for a one time immediate use.
Pros: Cheap and easy
Cons: used this for transferring various photo based files. The first time it worked great, the second time 2 of my photos showed up discolored. The third time It died. The light turns on, however the computer doesn't even notice it's there (I even tried on 4 different comps).
Summary: I think this "batch" of drives are deffective... I bought this when there were all good reviews, then when I got the write protected message I saw that after I bought it a bunch of reviews stated it was giving them the same problem. BUT, New Egg took care of it no problem, full refund.
Pros: Cheap, lots of space, and good design (no cap).