We stayed at Johanna's place for two nights. The apartment is very comfortable, cosy and has a Berlin character. It is located very close to the center by tram and also close to many nice coffee shops, bars and restaurants of Prenzlauer Berg. Johanna had to be away these two days we were there, so we had the whole apartment for ourselves. We met her when we arrived, she was very friendly and helpful and we had a perfect communication about everything, even though she was away.