Pros: The neutral design of the mouse makes it great for use in the left hand. The rubberized plastic feels very nice and not very cheap. The Bluetooth capabilities let me use this with my Android phone when I want to. I can't sense any noticeable lag.

Cons: The scroll wheel could be a bit easier to click. (This is important when working with certain CAD applications.) But it's not that bad. And I would have liked an option for a full-sized mouse. But that's not a defect.