I stayed in the Drei Raben in April 2006 with my husband & teenage son and asked for 3 bed room. We got the biggest hotel room I've ever seen - not only were there 3 beds, but also a table & chairs plus sofa & armchairs, and a huge expanse on parquet floor. I can't say what the other rooms were like but we could happily have lived in ours for ages! The beds were very comfortable with plenty of extra bedding in a chest, if you needed it.
The bathroom was equally large & splendid.
Breakfast was served in pretty room with paintings on animals on the walls, and it also had an outside terrace (which wasn't it use yet as it was still too cold). Breakfast itself was ample -plenty of hot food as well as the usual continental rolls/pastries etc, plus cold meats & cheeses.
The reception staff were very friendly & helpful, and the hotel was nicely situated between the railway station (within walking distance) and the old town.
All in all, a very nice place to stay.
Extra large room, plenty of bedding, great breakfast.