I have had it for about two weeks and it is what it says, a slim mouse. My hand is a little big but I got used to it being small relatively fast. Poros- Good input, easy to set up, cool little storage system inside the body of the mouse. Cons- really small click, and because I tried some games out it now is running low on satisfying click sounds. also, I would recommend a mouse pad, it loads on a hardwood desk. The last con is that the laser on the bottom does not have an auto turn off, Ill see what happens in a few months.
Ive been using this mouse for a could of days not and i gotta say its pretty nice and fits very well in the hand. Though it seems smaller than i anticipated, it still works fine for me.