S.'s place is the best place to stay if you have a very early flight at Tegel Airport, because of the proximity to the airport. She is really prompt to respond to all messages, and she scheduled a taxi for me, that was at the front door exactly at the right time. They are all very friendly at S.'s house, in case you need anything. It also helps if you are a pet lover, as the level where your room will be is where the cats hang out too (not in the room, on the same floor as the bedroom). The instructions and information about this place are clear and precise, you should have no trouble finding it. I wish I stayed longer than one night... Will definitely recommend this place to ppl traveling to Berlin.