Bests & Worsts Reviews from Amazon

=Cons= I purchased this mouse through Amazon a couple of weeks ago looking forward to this mouse's potential. However, I've gone through 2 of these mice over the past two weeks. They both worked for 2-3 days, then all of a sudden the buttons do not click unless held down for 2-3 seconds. And once the clicking problems started, the lights on the mouse stopped working. I tried reinstalling and flashing the firmware with the latest files from Razer Support to no avail. I find it hard to believe so many people have the same problems with this mouse for it not to be a manufacturing problem. =Pros= Great ergonomics. I like all 3 of the grips and the side buttons. It seemed like the perfect mouse. Wish I had trusted some of the negative reviews on this site and avoided this mouse altogether. I'm awaiting my third replacement mouse...praying it works as intended. I believe Razer has bad quality control in the development of this mouse. They need to develop new firmware/drivers or some other solution. Many others have the same problem I do. Buy at your own risk!