Fantastic interior decor. Great outdoors terrace. Light rooms. Relaxed, friendly welcome. Quick email response. Clean and well-maintained. Convenient location for the UBahn which runs 24 hours a day. (Every 20 minutes in the night).
I had a room towards the rear of the building (requested at reservation time), and was not disturbed by the crowds on the Reperbahn in the night (from Saturday to Sunday). So, top marks there. However, the room door did not absorb conversations from the corridor - maybe the sound-proofing can be improved there? So, only four stars. But I'll definitely stay again next time I need to stay overnight in Hamburg.
Great sense of humour and style.