We stayed for 3 weeks in Olimpia's lovely room.
The house is located near S bahn and U bahn, so we did not have any problem regarding transportation. The neighborhood is also quiet, so it was very easy to sleep at nights. Olimpia's room is bright and also large enough for 2 people to spend time.
Olimpia is very easy to get along with. She is very helpful and has recommended a lot of beautiful places in Berlin. She even took us to a very beautiful jazz club. She is also very clean, tidy and cheerful.
It was really fun to spend time with her and we were very pleased to stay in her room. In short, highly recommended!