I'm a leftie, and this mouse is NOT designed for left-handers. I kept brushing the forward and back buttons (which are very sensitive) and would find myself unexpectedly thrown back a screen. It was my fault for not looking more closely at the product image. I should have bought an ambidextrous mouse.

It's bad for gaming. Delays and sometimes the mouse would rotate in circles

over time, the laser loses sensitivity - after a month

After several weeks I've found that the scroll wheel does not function properly. If you don't scroll slowly then it'll bounce around and scroll the wrong way. Disappointing.

This item only works one week, terrible experience.

I've had this mouse 2 months now. I love the look, and at first, everything seemed great. Now, the scrolling won't work right. If I continue to scroll, it goes up, goes really slow or doesn't go at all. Spend a little more money and get something that will last.

Great mouse for everything but scrolling; when scrolling up or down there is a constant jitter where it will go the opposite direction -- making it unusable for scrolling thru anything especially in game.

I have ordered several of these and the range in quality is huge. Some work just fine, others are so bad that they are unusable. The last two I ordered were both terrible quality and my return window just ended so I am out $$ and stuck with useless products. I would look elsewhere for someone who has a quality control dept.

Mouse is nice and comfortable but after two months stopped to work

I've had this for about 3 months and it's worked well. Recently, when I scroll slowly, the scroll with "jump back" in the opposite direction without my prompting.