Summary: Some do not like small size. I think it's great, I like the dimensions. I'm using it instead of my Logitech. The Logitech is a little bigger and does not have the "sleep" function and and didn't need to change batteries for 18 months.
Pros: The mouse is inexpensive, fairly comfortable, and works on unconventional surfaces quite well.
Cons: Two main complaints about the mouse: - The mouse will often register more than one click on a simple click. This can be very frustrating in quite a few cases, where a second click changes everything entirely (from selection boxes to basic games). - Not necessarily a "con," but the way the mouse c...
Summary: When it first shut off, I tried switching out batteries, pressing all kinds of buttons, and trouble shooting it. Finally out of frustration I gave it a solid punch. It lit right back up and worked fine. Now every few months it might go out, but I just give it a good smack and it lives again!
Pros: Very low price. Compact. More ergonomic than you'd think for a compact mouse. Long lasting-ish(see other thoughts).
Cons: After about four or five months it would randomly shut off every few months.