Stayed at the hotel for one night on our way back from holiday. It is pretty close to the autobahn, while still located in a city (north of Kassel) with a number of shops and restaurants.
The staff where very friendly and spoke excellent English. Private parking was provided for free and so was the internet - except for the fact that our room was too far away to pick up the wireless signal...
Rooms were celan and spacious, but no A/C
Basically, a good standard hotel while you are on the move.