Very pleased - the bedroom and bathroom were clean, the bed comfortable (and I have a dodgy back, so that was a relief!) and loved having so many nice cafes and eateries so close. Doing a very full-on workshop during the day, I was particularly grateful that it's so peaceful - the room is at the back of the building, and you'd hardly know you were in the middle of a major city, so I slept well. Good value, I had a great time, so will check to see if Frank's room is available again next time I visit Berlin.