Bernd and Katja are lovely host, with great hospitality. Although they were away that week end, they were reachable and made sure that everything was well.
The place is really cosy (the bed is really comfortable, and the place is quiet), great neighborhood. It is perfect for a city trip !
The area offers a great choice to eat (breakfast, lunch or dinner), and it is perfectly located in terms of public transport (S/U/Tram).
We had a great time, and we will definitely come back to Berlin and stay at Katja and Bernd's.