The Logitech M310 mouse is what I use at work. It is wireless, which is very nice when you have a desk covered in papers. The last mouse I used had was wired and the wire would keep knocking papers off of my desk. The wireless mouse provides a lot of flexibility. It picks up a pretty good distance as well because my computer is actually under my desk at the other end from the mouse. It glides nicely and smoothly. Even after using it for hours, my hand is still relaxed. The scroll wheel turns consistently and smoothly. The buttons don't click too easily, but they aren't hard to click either...they require a nice pressure to click. I haven't had any problems with unintentionally double clicking. It is a very nice comfortable solid mouse. Performance I have not had any performance issues at all. Durability I have only had the mouse for a few months, but so far no problems. Design This mouse fits my hand nicely and comfortably. The scroll wheel is designed correctly. Comfort Fits nicely with my hand. No cramping of my hand after a lot of use either.