A really good quality work from Logitech. I get along very well with her getting along and had been the predecessor possessed. Whether in daily work operation, or playing computer games, keeps the mouse promises. I personally love the + / - buttons for the pointer speed. So you can quickly change depending on the application, between precision and speed. In addition, this mouse has, contrary to many competitors products a perfect ergonomics - at least for my hand.
The only downside in my opinion is the very high price. The mouse does in my view not much different than its predecessor - something clearly more speed, a little more precision, but what I expect from a development. Whether that but a considerably higher price is justified ... I'm not so sure.
