Summary: This was exactly the form factor I wanted to keep a few in my desk drawer for transferring and/or sharing photos and videos, etc.. I also own a different, super-small USB flash drive with a cover for the connector that I carry around with me everywhere.
Pros: Reasonably high capacity, USB 3.0, medium form factor and decent build quality.
Cons: If you're looking for an ultra-small form factor, this is not it. Also, if you're going to carry it around in a pocket or somewhere that dirt might collect on the contacts, this connector is not actually covered, just retracted.
Summary: Purchased advertised special of 3-16GB USB3 thumb drives. Intent was to create external boot drive to use for repairing my families Macs (multiple operating systems). The software I tried to use to create the boot drives said all three had physical damaged areas and needed to be replaced.
Pros: Can't lose cap
Cons: Has place for ring to attach to key chain but no ring is included.