This tiny cafe seems to be one of the most poular ones in Berlin.
Serves great coffee from different parts of the world. some good pastries are great companion.
Flat white is it's hit! Staff in multinational and super friendly.
Even if you stand in a line or drink your coffe pushed into the corner (only few tables and chairs as an outfit ) you don't feel like leaving this place.
Small garden and banches outside are worh a try even on the winter day.