The most important reason why this coffeehouse is loved by locals is that it has a somewhat dual atmosphere. On the one hand, on the first flour the design is cool and modern, with a london phone booth and brick-like wall. On the other hand, it has a fairy-like atmosphere with references to famous fairytales on the walls, clocks and aquarium.
Because it has amazing interior design and atmosphere. It is also such a relaxing place that you can literally loose the track of time when you are in there- I've been there my friends!