Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very impressive mouse with few problems

Contrary to what some other reviewers have said about this mouse, there is no lag in the mouse movements. I play a lot of games and I've not had a single problem with the cursor lagging behind my movement. This mouse also has amazing battery life (about 6 months) If I would have to complain about one thing with this mouse, it is the mouse wheel. It doesn't "click" like most mouse wheels do, so it sometimes becomes hard selecting weapons in games like Half-Life 2. The middle mouse button is also very hard to press in, making it useless for frequent use. The mouse works great for games, and it would work perfect for less click intensive tasks