I have a microcruzer but the little ring that attaches it to the keychain is garbage. It stretched/failed after owning/using it for a couple of weeks. Since then it's lived in my backpack as a backup. I do miss having a USB drive on my keys all the time though. I do like the look of these newer tiny/flat type drives (where the tip looks male rather than female). I've even seen some shaped like an actual key and such.