Cammerlander was very close to where we were staying and looked nice from the outside, so we thought it was worth a go. We were confused from the moment we walked through the door. It's three restaurants within a restaurant. I'm always worried when we go somewhere that tries to do lots of things and I recall the phrase "jack of all trades, master of none". We chose to sit in the Cammerlander (international) section.
The food was OK, but nothing felt terribly authentic. We started with some kind of vegan nacho dish, imagining that if there was a Mexican section, that this would be pretty good, it was average. We then both had variants on Spinatknödel (which is traditional locally), the vegan version was essentially spinach ravioli and was mediocre.
The staff were friendly, but the meal was expensive for what it was. The other dinners seemed to be other foreign tourists, unlike many of the other places that we visited, perhaps that is a sign. Their menu did however contain a dedicated vegan section. When we walked past during the day, their tapas restaurant was always pretty busy, so perhaps we should have gone there instead.