This is a very good mouse. I've got the full size version, and it's very comfortable to hold and to use. It's sensitive and responsive, with no apparent delay in cursor movement. The cursor speed can be adjusted between normal and fast mode (one of 2 settings using the dpi switch).On the upper left hand side of the mouse there are two small back and forward web browser buttons. However, I find it easier and quicker to use the mouse cursor - especially if the mouse is switched to fast mode.The mouse uses two AA batteries (2 alkaline batteries are supplied). When not in use, the mouse can be switched off from underneath. I'm using the mouse with a Windows 10 laptop. No additional drivers were required. I only needed to plug the supplied receiver into a USB port; press the 'connect' buttons on the mouse and on the receiver and it worked immediately. Overall, it's much better than my previous mouse, which was more expensive.For someone with larger hands / longer fingers, this full size mouse would probably be a better choice than the usual small or mid size mice.