The Hotel Am Kaisersaal is well situated in the city for seeing all the historical sites, shopping, eating, relaxing, and near public transportation. I'd go back in a heart-beat.
The room was very nice and very spacious. The towel warmer was a nice touch. Everything was extremely clean. A frig would have been a nice addition.
The hotel was central to the sights in Erfurt, the on-site car parking facility was excellent and a must in town which has such complex oneway traffic systems and pedestrian streets.