We stayed in the Haus Tilly for two nights. Are main focus was exploring the town so the location was important. We arrived after 11pm and we were greeted by the night attendant and shown our room without problems. The parking is in the court yard outside the rooms with locked gates at night. It was very safe and private. They have a small cafe in the court yard where everyone was pleasant. The front desk supplied us with maps and helped us figure out where to go.
The rooms had a nice view and were extremely clean. If you are visiting Germany I would definitely recommend staying here for a night it two to visit the beautiful town.