Summary: Just as advertised, a very fast USB memory stick. I would have given it 5 stars if it had just been a bit smaller. The case is very sturdy and will put up with a lot of abuse so no worries carrying it buried in your briefcase, purse or backpack.
Cons: I got this device about 2 weeks ago, and I have gotten several other USB3 drives with the transfer rate of 65 to 88 mb per second. This device is suppose to be USB3 and the transfer rate is just under 9mb per second. If you want USB3 pass this device up.
Cons: Unreliable writes, CHKDSK can't fix it. After 1 year of moderate usage - I didn't even move it around, always on a desktop PC - it started to develop "bad sector" as it were, failing to reliably write. It is to the point the OS thinks the volume isn't clean every time you plug it, and CHKDSK fail...
Summary: This is an incredible thumb drive. On my system, I benchmarked it as 260MB/s Read, 90MB/s write. It's almost like a 2nd Generation SSD you can carry on your key chain. I use it for running virtual machines and it's perfect for it.