We stayed for 3 nights in Stefan & Hans’s house, and everything was perfect!
The location is in walk-distance to the main sightseeing area, and there are bus /tram station and supermarket just near the house.
The house itself was even bigger and cooler than we expected based the the pictures we saw, the furnitures are super modern.
Stefan and Hans are evry nice and helpful during our whole stay, I can’t come up with any other idea but recommend this house!