This is the best place on the mountain to sit and relax for a bit, have a beer and enjoy the view across the valley on a clear day.
The choice of German beers is pretty good (certainly better than anything else on the mountain) with a great wheat beer called Maisel's Weisse available, which I haven't found anywhere else. For that reason alone it's worth heading over there for lunch.
The food is so-so; again, compared to what else is available on the mountain (greasy hot dogs etc) it's super "gourmet" but that's not saying much! It's also quite expensive.
So in summary, great beer and great views, so-so expensive food.