I don’t know if this is a plus or minus, it’s quite individual here. 1. Compared to my last mouse from cougar, the buttons themselves are stiffer here and the wheel also scrolls harder. But rather a matter of habit. 2. The charge lasts for two work shifts of 12 hours. At the end of the last shift, he already swears at a low charge. I don’t know if this is a lot or a little, because this is my first wireless mouse and there is nothing to compare with.