Haven't had any problems with it yet, no complaints.
Started working as soon as I plugged it in.
Great product considering the price.
On/Off switch doesn't work.
Mouse seems to really use a lot of battery.
Only lasted a couple weeks before I needed to switch batteries.Overall usage is OK. That's why I didn't rate 1 star.
Slow to come on, keeps going to sleep, and to wake it up I have to either turn it off & on, or click one of its buttons, which amounts to clicking on the screen when all I wanted was to turn my mouse on.Also, I don't like the feel of it: it feels like its dragging, not responsive.At least I can't accuse it of feeling flimsy -- just the opposite, it feels big & clunky.
I have purchased this mouse and it works well until the battery needs to be replaced.