Max was very responsive and proactive. He was very accommodating when we asked to add people to the booking. Check in was easy with good instructions. The. Ubahn (U9) station is right outside the door. and S bahn stations are less than a 10 minute walk. Max left lots of information about the area and local places to eat. The flat is quirky and worked well for our 4 adults and a 20 month old. We would definitely consider this as a base when we return to Berlin, or to look at one of Max's other places on Airbnb.