The mouse is lightweight, good grip and nice enough to use on a mouse pad, but ... The sensor is too sensitive for my taste, the slightest vibration moves the cursor preventing standby and brings out the pc waking too often. Also this mouse can not stand to be lifted off the mouse pad every millimeter! As soon as you lift slightly the mouse ... more control. This also implies that it only works on perfectly flat surfaces ... forget your jeans or the seat of the sofa if you do not have a magazine under the elbow ... Too bad because the reach of the receiver is good until 3-4 meters.
