Location: located South of the city center, roughly 30-40 minutes by Berlin's great public transportation system, Norbert's place is great if you want to avoid the hectic City but still be close by. Just be careful if you stay out late at night, the trains come less frequently than during the day.
The room: a well kept, extremely clean room with a very comfortable bed. Norbert provides maps and a list of recommendations for what to see and do in Berlin. There is a friendly cat in the apartment, but she isn't allowed in the guest room.
The host: Norbert is superb with his communication. He details every step how to get to his house and the check in process was a breeze!
Definitely would stay again!