We arrived late in the night, about 2am, and the host was so nice to wait for us in this late hour. We was 4 adults, so my friend and I slept on the sofa bed, which was very comfortable even for a long stay of 7 nights.
Cecilia is very friendly and helpful. The apartment is perfectly located, we needed only one transport to almost everywhere, including the airport. There is Lidl in a walking distance.
I will definitely look for Cecilia's apartment for my next visit in Berlin!