Ok, first, a proviso... I speak a little German. Just enough to get by.
We chose this restaurant primarily because we were staying at this hotel. We ordered from the English menu. Not long after ordering a waitress brought a single salad (there were three of us). She asked us (in German) who got the salad? She got VERY annoyed when we couldn't tell her how to do her job. I picked up a menu hoping to find the items we ordered. This apparently was unsatisfactory since she tossed the salad bowl (literally tossed) onto our table saying something like "you figure it out".
The next morning when we walked into the dining room...there she was AGAIN ! She asked for our last name. I told her my last name. She asked again, but louder. I told her again in a normal voice. Apparently she is of the school of thought that louder is better, because she yelled this time. I pointed at her seating chart, directing her attention to my name printed on our table. She just walked away.
The food was great. Just avoid the waitress with the perpetual snarl on her face.