We spent 4 quiet nights in Selin's very nice apartment, which is larger than the pictures suggest. It is clean and cozy, and feels like home. The two floors and two bathrooms are very convenient for privacy. It is ideally located in a backyard, so you can't hear the street noise. It is also ideally located in the center of the city, very close to public transportation and a short walk to Friedrichstrasse Station and Museum Island; we visited almost everything on foot. For those who don't want to cook but don't want to spend the evening in a restaurant either, there is a small, inexpensive pizzeria around the corner that serves delicious pizza. The communication with Selin was excellent and her friend Simona welcomed us and let us drop our luggage before check-in time. Although some small repairs and additions could improve the comfort, we would not hesitate for a moment to stay there again if we ever come back to Berlin.