I use this mouse for months, and I confess that I do not have much to complain about. It is small but with a very good grip, no pain even in intensive use (more than 12 hours / day). housing for the receiver to automatically turn off the mouse is a great idea, as is the on / off button in case the user would allow the mini receiver into the laptop or PC, resulting in a huge battery life (between 3 and six months with the same batteries intensive use until more than a year in time use!)
In fact the only dark spot is its sensor a bit overwhelmed by the new Darkfield sensor ... but at the price it is offered ... Do not hesitate!
