The building is outdated in a secluded residential area - probably 1950s.  The main entrance, which is in the restaurant section reeked of the scent of diesel fumes.  I didn't know there was not an elevator or I would not have booked the room - I'm 75- too many stairs and boards on the bottom of the bathr door of 4 inches high - in the darkness, I tripped!  The facility is supposedly 100% no-smoking, but smokers did so anyway and it was impossible to keep the smoke out of my tiny, insufficient room - the room so dark that reading was impossible.  For dinner, it was necessary to drive 15 minutes, as there is no restaurant service in the hotel - only breakfast.  The bed was an antiquated, spring mattress! To top off my great disappointment with this booking, I was double-charged by both cash at the hotel and on my Visa Card by Expedia.  In my 45 yrs of travelling in Germany, I have never encountered such a poor accommodation!