For the price, this is a very good mouse. I find very small (without it being "mini") as used to the standard mouse, but it is convenient to carry in a laptop bag. The sensitivity was awe inspiring, that's not bad at all. The cord is long, which can be a plus if you plug it behind your turn, like a shot if you use it on laptop. Very nice. The shiny side up the still makes a bit messy. For 415, this is really perfect!