I am living in Berlin for a few years, and needed a place for a few days in between apartments.
Kreuzberg is my favorite central area of Berlin. Staying here, at Christiane’s place was a pleasure. The apartment is very beautiful, as advertised, and both, her and her daughter were very helpful and friendly but also discreet.
What sticks out is the atmosphere of this local home that can't be found staying at a hotel. Coming from a busier area, here i managed to sleep like a baby, the building facing a small lateral street.
I definitely recommend Christiane’s in Kreuzberg.