Not really good in the hand ...

I lack in this mouse to the details. Much is well thought of, but not all equally well implemented. First, the advantages: As promised, the mouse works on almost any surface. Here the Logitech can really collect Plus points when compared to my other devices. Also convincing: The mouse has installed a battery and can therefore charged. Either via USB or any commercially available smartphone charger. Thus, the annoying change of batteries is eliminated. A total of three computers is connected to the mouse. The connection is made either via Bluetooth or Unifying. This, too, of course, knows how to please. The buttons can be freely assigned. So far so good. However, in my opinion, the arrangement of the keys is not resolved convincingly. In particular, the two side keys are in my opinion too small and too close together. Other multi-button mice have solved better and more ergonomic. My fingers have pretty looking until the optimum position is found. A clear drawback, even if the Logitech otherwise quite reasonable in the hand. Would I - starting to distribute a grade for the device from the price-performance ratio, would a "satisfactory" out of it.