Summary: I'm a teacher and I've used this mouse at work for over a year, on one battery, too. I can honestly operate my slideshows from two classrooms away. Totally freaks the kids out! I love it. However, the laptop to which I was connected was stolen yesterday. They got my receiver but they didn't get my mouse! I'm more upset over losing the receiver than the laptop! Oh, and there is a special place in "the bad place" for people who steal from children. Just sayin'.
Summary: I have bought several of the Logitech M525's for my workplace and have one for myself at home. Never had a single complaint, great price and lots of nice colors. It feels good in your hand as well.
Summary: The mouse works great and can be paired with Logitech unifier with other Logitech devices. Wireless works great. Only problem is the size of the mouse, it is very small and can cause pains after long usage.