Instruct: Classify Amazon reviews into positive or negative sentiment
Query: What a waste of money! If you're smart, you'll venture on.

I received this mouse as a gift, and it was nothing but a pain. I've used all different kinds, but this mouse was by far the worst. The lag time to get it back up and running is awful, and I found that if there was any dust whatsoever on the underside, the dang thing wouldn't work until it was completely clean! The only plus side I could even remotely give this mouse is that it is larger, so it would be accommodating for those with slightly larger hands. Unless you feel like cleaning it (and I mean thoroughly) before every use, it's not worth it.Note: after I got rid of this mouse, I went to Logitech duos and have not had a problem since.