This is one of the best restaurants in Berlin and you wouldn't know by the looks. From outside it's quite shabby and inside it's quite dark and dusty, but they serve excellent French cuisine there (especially the Tagliatelli with prawns) and the wine is amazing. Jacques, a jovial Frenchman with beret, accent and everything, is still serving all the customers in person.
Maybachufer 8, 12047 Berlin, U Schönleinstrasse
Updates
This place has really gone downhill since this review was written, the service has gone off and Jacques is no longer there. Café Jacques hasn't "gone downhill" - I was there a few days ago, it's excellent! And the same guy is there, with beret and accent. Go there, I live in Berlin and it's one of the best places I know.
Is this your business?