[This review was collected as part of a promotion.] I like the simplicity of this mouse and the price; but the main reason I didn't give this product 5 stars is because I'm not a huge fan of the way the top comes off to get at the battery compartment. It doesn't seem intuitive to me (I sold one of these to another customer a couple of years ago and when they needed to replace the battery, they had to get in touch with me about where it was hiding) and it seems kind of flimsy. I prefer a simple compartment on the bottom or a small button that releases the top cover. Otherwise, it's a nice, simple mouse.