Pros: -Super fast! I routinely transfer 300mb (and sometimes much larger) files around on a daily basis and I cannot describe how much better my life is because I have this key. -Mechanism to cause USB port on key to appear/retract has a very pleasant, solid feel to it.

Cons: -Needed to reformat in order to store files over 4GB. Not a knock against the key itself, as this is just how it was formatted and reformatting was easily accomplished. -Housing is somewhat larger than the 32GB Lexar I had before it, so may not easily fit into tightly-spaced USB ports. Thankfully I had enough room on most devices I use but it's something to consider.

Overall Review: -It's pricey compared to a generic key but if you transfer files between machines on a regular basis get this; you won't regret it. -I typically work on OS X-based machines.