Pros: Works great. Nice when you don't have a good surface for moving a normal track mouse with. The magnetic back is awesome for changing the orientation, or mounting the mouse on a horizontal surface.

Cons: Difficult for fine control of the cursor, but I think that's normal from track ball mouse. If you're used to trackball I think this one is probably on par with what you'd expect.

Pros: Lighting is nice, and I like the large print. It's easy to read.

Cons: I guess I got spoiled with a logitech keyboard where the key spacing was a bit closer. It's a little more of a stretch for the fingers on this keyboard, but not that big of a deal. I'm sure each keyboard has different key size / spacing.