We have stayed in a dozen AirBnBs, and I can honestly say this was the best experience we've ever had. Martin was a gracious host who met us and took the time to show us where everything was we wanted to see in relation to the apartment. He was responsive and friendly when we had questions and even had the fridge stocked with milk, something that was welcome after our time traveling.
The apartment itself was the first AirBnB I'd been in where it was truly stocked for the comfort of the guest, with plenty of towels and toiletries, maps and brochures, and comfortable beds.
We will absolutely stay here again and we're already planning our next trip. Berlin is one of our favorite cities, and Martin is surely a favorite host.
Highly recommended!