Here you get for little money a shapely, pleasant light Handschmeichler with accurate scanning. That the click to be loud, I can not confirm, as compared to the G5 and M705 the click is significantly understated and dull.
The touch functions are mainly confined to classic scrolling gestures, but I personally am not interested in a complex gesture controls with the mouse, so I am hereby pleased.
Caution, however, to all FPS gamers: It is not possible, the left and the right "key" to be pressed simultaneously to aim down the usual sniper control with the right button and then firing with the left does not work! I put in such cases, but anyway the control of "hold" on "switch with a click."
Compared to other mice, the M600 is built very slim and low, people with large hands it is perhaps a little too fiddly. See photo (l. G5, m. M705, r. M600).