Fantastic location! So close to some of Berlin's most famous attractions like Museumsinsel, Friedrichstrasse - you can reach just about everything on foot. Tram station right down the road. Location is in a quiet street. The flat is very spacious.
The restaurant causes a little bit of noise in the evening, but it did not bother us at all - when you close the windows you don't hear a thing.
I can really recommend it!