I use this to provide storage space on my ADSL router. Space near the router being almost non-existent, the VERY small size is extremely useful. The drive protrudes only around 25mm from the surface of the router, and is in fact 'shorter' than the plastic trim around the top of said router. I've had this for almost a year now, and not had a single read or write failure, despite frequent use of the entire capacity (14.9Gb FAT32 formatted).
The one, slight criticism I have, is that write speeds can be a little slow, especially with large (500mb or larger) files. I often store .mp4 video files to stream them from my router to the TV, and whilst the read speed is more than adequate for 1080p video, a write-speed of around 5.5mb/sec (on my Win7 system) means saving / uploading the file can be a little tedious.