No question, this mouse works properly and is also quite adaptable ... but my hand not adaptable enough. Apparently I just got too big hands and as I am a "Palm Gripper" and no "Clawgripper" is my rear palmrest too small (and, unfortunately, too edgy). The replaceable parts are a very, very cool gimmick and see just very interesting, but my hand just can not get used to the costs of their modifiability columns. The software works and the mouse looks stable. Used it is with me unfortunately (for convenience) hardly ... But since I collect mice it's just the "Mad Catz 'representatives in my collection. The equipment is actually very good.