From an admittedly non-German, visitor's perspective this small café/bakery is a good option for a…read morequick lunch or to hold you over while wandering the city.
Based on seeing this same eatery and logo in Munich, we came to the conclusion that it is a chain. If you are from the U.S., the best comparison would be that it's similar to a Panera Bread outlet.
The hot chocolate was good, and the atmosphere was pleasant. In addition, the chocolate cake with buttercream filling and cherries was very tasty; one item the wife and I liked was that, like many German desserts thus far, it wasn't overly sweet. We appreciated this, as in the U.S. often sweets take it too far. We also had a pastry filled with cheese and raspberry jam, which was quite nice and also not too sweet.