I took a group of people here a few years ago. The food was outstanding. We enjoyed an authentic German food buffet. When we were finished, someone said, "It did not look like we touched the food because they kept replenishing."
We had a great time at this restaurant where the 4 of us had a great meal while listening to the nice waiter telling us about his trip to find agate stones in Brazil. The ambiance is also very easygoing and contributes to feeling good. If we pass by, we will sure eat again at this Alte Gaststube.