Excerpt: I use this mouse at work and have been using it for about three years now, I have had no problems with it at all. The one I have is actually branded HP but is made by Logitech it's model is M-SBF96. I upgraded to this mouse about two to three years ago, Imagine how frustrated a computer engineer and a programmer who was still using a ball mouse would.
Summary: I always had mice of this brand, they work fine. The previous one worked for many years and travelled around the world with me (backpacking). Not sure why it stopped working, but after 5 years of rolling it up daily in my backpack, I figured it was fine to get a new one. This one has 2 buttons plus a wheel (3rd button) and a wire, which means that no batteries are needed and the wheel is silent. That's a great feature set, thus 5 stars.