I enjoyed my stay at this lovely place. The house is quite cosy, the location is very convenient with several markets, cafes, restaurants, a pharmacy, underground station (U Amrumer str.) and a hospital (Charite Virchow) being within a walking distance. And most importantly, Karl has been an extremely helpful host, responding to each query within seconds and making everything possible to ensure that we felt comfortable during our stay. So, I would have no single reservation recommending this place to anyone willing to travel to Berlin.