Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It works, but disappointed

I ordered this hoping to have a flash drive small enough to put on my keyring. This is exactly that; it's small & thin. However I'm disappointed that the description-included strap was not actually included with the item. The plastic case other customers have mentioned is a miniSD case the flash drive is crammed into.Several times it has crashed the computer immediately upon insertion, while no other flash drive I own has this feature. However a reformat seemed to solve the problem. The read/write speeds aren't anything to write home about, but they're not terribly slow either. The data seems to store just fine so bonus there, but I've only had this item for ~3 days. We'll see how it holds up.All in all, it works, it does what it has to, but I wouldn't buy another.