I can't tell you how hard it is to find a good coffee in Paris but I must say I've probably found a coffee heaven right here in le 7ème. This little place, called le Coutume café is the correct mix between New York & Berlin style. Do you know a place where they still roast their own café & organize coffee tastings, cause I don't? It's not just a simple space, beautifully decorated by Cut Architectures, it's much more. I would easily find a way to come & enjoy a daily espresso here if I wasn't living at the other side of Paris.
Coutume Café, 47 rue de Babylone, 7ème