We had breakfast and dinner at the hotel during our stay. Both excellent (but not cheap). 5 stars for the downstairs, the food, and the staff.
The beds are too soft, and the curtains barely cover the windows, so you might not get a great night's sleep. In winter at least it would not be light at 5AM but in summer - you are not going to get a lie-in, even if you don't mind a too-soft mattress. A shame - downstairs looks like a lot of thought went into it, and the location just opposite the StadtWall of Innenstadt is terrific, and also a short walk from the railway station.