My son has tried it. And I read a review that it is also suitable for professionals.

I've had the Boox Max Lumi for years and have now bought the Boox Tab X C for my wife. The same in colour ;-). It works great with the MobileSheets app from Zubersoft. Low light is no longer a problem and as the tablet has a matt display, it also works outdoors in the sunshine. I already have around 400 pieces and scores on it, always neatly organised and ready to hand :-)