It is small, has an extraordinary - and yet very functional shape that fits snugly under your fingers - and excellent workmanship. It is relative to your "size" rather difficult and so gives a very solid impression at work, who by the great material (metal side panels, soft paint-plastic surface) is underlined. The soft-touch paint is also after half a year of intensive use any wear and tear.
The entire surface is touch sensitive and detects the typical Windows 8 gestures. The only "moving" element is the entire upper part of the mouse, with a click can be performed. This is realized through a very full and precise clicky microswitch. A pure "touch tip" on the surface is not possible. As with other touch mice from Logitech and Apple also carried out the detection of a left-hand or right-click the finger position on the touch panel. This is where the only point of criticism: The touch panel sometimes does not recognize the rest of the finger when it is located at the bottom, so that then not implement the click action occurs.
The connection of the mouse via Bluetooth. The Re-Connect from the idle state to work with my Ultrabook without any problems and very reliable. The battery runtime is at a 5-day 9-hour use CA 2-3 months, what I am looking for a Bluetooth device as well.
I am very satisfied with the mouse, it is because of your size and endurance and quality ideal for mobile use in combination with a notebook / ultrabook - apart and sees it still pretty cool.