This is a great place to stay. Clean and centrally located. David is polite and quick to respond to any questions. He was accommodating. The check-in process was efficient and straightforward. David also gives an orientation to the city if it's your first time. He checked my transport ticket to make sure it was the right kind. He also gave me public transport tips, information on places to see, advice on where to eat, and a city map with notes on it. I'll happily stay here again next time I'm in Berlin.