Norbert is a very friendly and welcoming host. We enjoyed tent camping in the field under the main building, even if it was a bit of a hike. Drinks on the terrace were a highlight because of the views and the good prices (3.50 for a 33cl beer). There was some food offerings (fondue, meat, rösti), but nothing vegan.
The one negative point was that there was only one toilet+sink shared between the tent camping people, van people, and anyone who was staying in the Massenlager. We weren't expecting for it to be shared between so many people.