I got this Logitech wireless mouse from my girlfriend, because she didn't need it anymore. It's second-hand and it still holds up better than any computer peripheral I've ever seen. I've dropped this thing on our hardwood floors more times than I can count. I actually just dropped it a few minutes ago and it's still going strong.

This mouse is extremely comfortable and ergonomic, which is a relief because so many mice on the market today are not. The wireless range is very good, which I just tested at about 15 feet. The mouse is a little on the heavy side, which I like, so it has a feeling of being "beefy" and durable. It's very well balanced.

Looks-wise, I couldn't ask for anything more. Before this mouse, I was using a trackball. Trackballs are great for designing, but are ugly as sin. This little jewel is perfectly designed. It's clean and simple, just my preference.

The only thing that I don't like about this mouse is the fact that it's only three buttons. I have gotten used to having a 5 button mouse, especially for surfing the internet by using the forward and back buttons on the left. I have adapted, though, so I think I'll live. Hopefully Logitech will make a 5 button version. Someone mentioned in another review that the battery life is next to nothing. Maybe they got a faulty unit, but mine has incredible battery life. In fact, I think I've only had to change the batteries once since I've had it.

All in all, I'd 100% recommend getting this mouse if you feel the need for a wireless optical mouse. It's accurate, smooth and tough.