The place is huge and beautiful. The pictures do not do it justice. It is on the top floor, so no one is stomping above you. When you enter you are in a long hallway. The bathroom is on the left, then the kitchen, then the bedroom with a single bed. On the right is one of the rooms with two beds. At the end of the hall is a living room connected to the master bedroom. Each of the bedrooms is big, even by American standards.
The owners are incredibly friendly and helpful. When I asked a question about the train station he offered to walk me down to the station and help me with the ticket machine. Super kind. His English is fantastic, even if he isn't super confident in it. His son speaks it more fluently and is available via the app email system in the unlikely event you have a communication problem.
There is an electric car charging station, which is cool because the stations I could find in town were all a hassle.
It is a short walk to the train, and then an easy trip to Heidelberg. I would not recommend driving in Heidelberg, just take the train and walk around. Your gps will inevitably drive you down narrow one way cobblestone roads or pedestrian walkways that are really only available to delivery trucks.
There are several good food options right across the street. The grocery store is an easy walk as well.
The owners has a beautiful garden, including apple trees. as others have mentioned, delicious cake is involved.
11/10. Would stay here again.