Superb accomodation. The rooftop space is a great addition. The room is comfortable, and the hosts have thought of everything.
Anderson and Guido are so welcoming, finding the right balance between leaving you to get on with things and engaging in conversation.
The hosts are very knowledgeable about what to do in Berlin, the accommodation is very clean and tidy, facilities are excellent, and location is great - 1 minute walk from one u-bahn and 6-7 mins walk from another!! There are plenty of convenience stores and food outlets close by also if needed.
I wouldn't hesitate in recommending this place, and hope I can return one day.