I had a great stay at Andrea's place. He is a very good host. I was so grateful for his detailed instructions as to how to reach his place. Thanks to a private bathroom and a separate entrance the room had a feel of a small apartment, for a price of a bed in a hostel. The area was amazing. I went to Charlottenburg park every day. The bakery downstairs was, I think, the best bakery I've ever been to. My tip would be to rent a bike, for example from Michael Kujawski, Sömmeringstraße 24-26. It was a wonderful experience to explore Berlin by bike. Also, I really liked the cinema "Kant Kino", and the bookshop opposite the cinema. I would love to come back there.