We have have just completed a 5 night stay at the Berliner B & B. Pictures on the main website over glamourised the B & B. It more like a hostel with private rooms versus a B & B. Sheets, towels, beds and rooms are very dated. And unfortunately our room smelt like stale cigarette smoke, we should have mentioned this to the host at the time but didn't want to be rude.
The location is how in that you are very close to the underground which takes you all over town. Andreas the host was helpful and pleasant enough. Breakfast each day insisted if bread buns, deli meat, cheese, tomatoes and cereal. Overall we had a a pleasant stay but you could get better value for money elsewhere.More