I use solaar with a mx master 3s and it's great (thumbscrolling works as it should) except the mouse battery level indicator is uncalibrated...20% at the highest, then it's quickly at 5% where it stays for-e-ver.

I gas-up my car when my tank is below 1/4, so it's a little disconcerting to have a red battery indicator with an exclamation point on it...not enough to actually want to use it with the cable plugged in, but still...