Just a single sentence about this mouse : "SIMPLE AND THE BEST". This mouse is so simple and very handy to operate. I have been using this for two months and it feels so flexible to use. The only concern about this mouse is the wire length, the wire is too lengthy so that some times we feel little discomfort but I have adjusted the length to my comfort by tying some band like thing to the wire. Except that lengthy wire everything looks fine.