A highlight these two negative points:
- The operation of Bluetooth seemed perfectible by moment, without identifying an obvious cause;
- The autonomy of a small week in normal use (7h / day) clearly not suitable for office use (it is not the target of dailleurs product that clearly displays a 30-hour battery autonomy).
This mouse is oriented "gamer" and clearly has nothing to do with a notebook for office use.
Once this conclusion is drawn: the original design a small effect and I would not part with it.