Frank and his wife were great hosts. We were their first guest and made a great job. In the beginning there was a missunderstanding about the bed size "twin bed" sounds for Germans that it's for two persons. But the problem was solved by an air mattress, which they bought immediately. Communication was super easy. The whole apartment incl. our room and bath were very clean. There is a very good bus connection directly in front of their door, which takes you in abt. 20 min to downtown and the Museums Campus. Parking on the street is usually no problem if you don't arrive after all people back from work. We also spent the first evening together with our host sitting in the living room, chatting and sharing some different beers :)
All in all we had a great stay and can just recommand to stay at their place.