I purchased a few of these since they are small, well priced, and designed well.  The loop on the end can be used to attach the device to a keychain or lanyard.  I especially like the all-metal simple design.  I didn't want a huge plastic USB stick that would be awkward to carry all the time, so this worked out well.  The design is simple and elegant, and the device works as advertised.  It's USB v2.0, but it isn't advertised as a v3.0/SuperSpeed device so no surprise there.  The 16GB version is hardly more costly than the 8GB (at least when I purchased it) so it's definitely the way to go. 

Question: How is the one?
Answer: small