Pros: I love the size, and the mouse functions well on all surfaces except my glass desktop. I knew that from the start, so that was not a big deal. This mouse was bought to accompany my netbook that I use for international travel, and has been to three continents.

Pros:
Size
Functionality
Durability
Long battery life
Small receiver

Cons: Cons:
Receiver started shorting out middle of Fall 2012. Had to wiggle it to get it to be recognized by the computer. No big deal at first. I just had to find the angle that it wanted to be recognized at. Now, after a few months of putting up with this, I have to wedge a paper clip in next to it to get it to sit in the USB port well enough to recognize the mouse. Otherwise, the computer only recognizes it for a few minutes before the receiver decides to stop working.

Other Thoughts: Lasted almost 3 years, and has been good so far. Tested all USB ports on both my computer and my wife's computer with the receiver, and got the same result, so I know it is not an issue with the computers. The receiver has spent its time either plugged into the USB port or in the receiver storage well in the battery compartment of the mouse. If getting 2.5 years out of a mouse is good enough for you, this one is good. If you want something that lasts longer, go for something else.

Pros: Quiet, works well, cools my Inspiron 1520 Intel T7300 processor fine. Only once or twice have i actually hear the fan in the laptop come on while using this

Cons: Power plug comes out ofthe side ofthe unit quite easy, the unit needs a better way to adhere to the laptop and to the desk it sits on

Other Thoughts: more bang for ur buck than u get with a lot of products