I have visited this place once, not knowing what to expect. It is set up as a fancier version of a fast food place - meaning you need to go up and order your food and drinks at the counter. I went there without a reservation which I do now highly recommend as it seems to be a very popular place. I had a great vegan burger - I believe they actually have several to select from - but not at the time I was there. The staff is extremely friendly and helpful and the restaurant therefore also emits a friendly athmosphere.