I have massive problems to use the mouse wheel as a center button, how to open a link in new tab in the browser. Most often, the simple click does not work, you have to focus on it enormously to press the mouse wheel properly. Mostly it does not work well, and instead the page is simply scrolled. Only after several (about 10) failed attempts, I can open a window in new tab, which is really annoying in the long run. Luckily I have the mouse just as laptop mouse to take away and not use them at home.
Moreover, in my opinion, the right mouse button is too sensitive. Depending on how my hand is on it, the right mouse button can be easily triggered accidentally by the weight of my finger or my hand. I have for a woman maybe big hands, but I do not think that they are above average difficult, especially as the mouse's not intended as a woman Mouse.
Otherwise, the battery cover is shaking slightly, but this does not bother me.
I am also satisfied with the coverage. Sitting times in a large hall and was able to operate from 5m away my laptop with mouse easily.
