Bests & Worsts Reviews from Amazon

I was very happy with this mouse at first when I got it (I bought 3 of them for different computers) - the shape is good, the button placements are helpful and they can be customized. I had no issues getting the USB dongle work and I had no issues with disconnections. The mice worked fine for about 3 months. Then all of them, roughly after the same time of use, started breaking down - the left button sometimes doesn't register a click, sometimes it registers it multiple times. Sometimes the mouse doesn't detect that it's being moved and sometimes the middle wheel doesn't register rolling. The issues with the left button turned severe after a couple of weeks after, to the point where the mouse almost never generates the expected behavior. For $20, this is an extremely expensive piece of plastic junk. I use computer at least 9 hours a day for different things so usability and reliability are my top concerns when I buy a mouse. This one scored pretty well on usability (it's shape is what made me buy it - it's near impossible to buy a mouse now that has a shape similiar to Intellimouse Explorer). I'd be willing to pay a somewhat higher price for a quality mouse but there doesn't seem to be one. This one is junk for sure - buy it if you only need a mouse for a short time.