Katarina was very easy to communicate with and she was super flexible with our arrival time after our flight was delayed. She even helped carry our bags up! The flat is as described - plenty of linens and towels, and she had everything ready to go for us. The location is fabulous - a short walk to everything in Charlottenburg, and only 1 block to the S-Bahn. You can fit 4 people on the 2 beds (1 bed, 1 sofa pullout) but there isn't much space to walk around if you do this. Would definitely stay there again!