Summary: I guess you get what you pay for. I didn't see how this could be when its just circuits and no real moving parts, but lesson learned. The product itself feels a little cheap but I didnt see any fatal flaws in the design: a hard rubberized outer core, single sliding side piece.
Summary: Although the product literature claims the 128 GB version works with Mac OSX, this is not correct as regards the capacity meter nor is it true with regards to speed. This meter does not work properly on the Mac for any of the formatting options that I tried (NTFS, MS-DOS(Fat) and exFAt).
Summary: I expected faster performance from a drive of this size. XBench 2.0 shows a max write speed of 10MB/s. At that rate, it would take almost 4 hours to fill it. The read speeds are fine, up to 32MB/s, just the write is awful. If you're mostly reading after creating content, it could work well for you.
Summary: The key comes with it's own backup software which I installed and attempted to backup some files. During the process to set up the backup it offered to provide online back of the files which I signed up for (the first 2G is free).