Summary: Logitech has really proved themselves over the last 15 years, getting better and better. Let's just hope they don't jump the shark and choose ever bigger profits at the expense of quality at a budget price.
Pros: Excellent choice for budget-minded needs. Very responsive!
Cons: Darn it!!! Why couldn't the mouse have a back button on the left side of it! I'm used to my other mice having them. Good thing this isn't attached to my system! It's for my wife! (She doesn't know any different).