Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for Noobies

I've been using the MX for about 4 months now, and haven't had a single problem. The keyboard batteries haven't been a problem, and I hammer away at the keys for 10 hours a day. The mouse is nice because it has some weight to it, not like the crappy mice you typically get with a new desktop computer.The only complaint I've got is the amount of clutter on the keyboard. It's got office short cuts, F-keys that double as additional short-cut keys, and it's even got a scroll wheel on the left edge. Why? And the worst design decision of all: the hibernate key is just to the left of the escape key. All you vi users out there may find yourself putting your PC to sleep instead of getting out of insert mode.Overall, a great product, if you have some amount of clue with which to use it properly.