This isn't the sort of mouse you would normally go out and buy, as it is normally included with a Lenovo computer package. I use it every day and have found it reliable. It could do with a couple of more buttons to make web browsing easier.
It is a very cheap mouse to buy, and usually comes free with a Lenovo desktop or laptop computer.
Accurate tracking.
Good size, fits in the hand well.
Light weight so your hand doesn't get tired.
Good feel to buttons, and scroll wheel is accurate, smooth and doesn't cause the page to jump up and down like some mice.
Not as many features as some higher spec mice.
Corded.
Shape could be more ergonomic.