Detlef is really a super host: helpful, comunicative, friendly and nice. His appartment is cozy, comfortable and has everything one needs for a short stay. We spent a week there and didn't miss anything. The location is very good - easy and quick access both to Tegel airport (15-20 minutes) and city center (10-15 minutes) by public transport. The metro station is just 3-5 minutes by foot. We liked our stay very much and will recommend this appartment to all the friends.