Andreas von Haaren
Google
I've been here on two separate occasions, once the restaurant was basically empty, the other time it was crowded, but not full. Both times, the service was incredibly slow and disorganised. They seem to often hang around near the counter and talk to each other instead of attending to customers. There is a 10min wait before ordering drinks, receiving drinks, then once again before you can order food. After getting your food they will not ask you if you'd like another drink, and in order to pay, you should just go to the counter. Don't think about waiting for someone to come by so you can ask for the bill.
The burger was tasty, but more like a 7€ burger, not a 12€ burger. The bun was very dry.