The place is comfy and clean. Two minutes from the Ringbahn station you can get to pretty much any point in the wider center of the city in half an hour or less. WiFi works, we were provided with enough toilet paper, shampoo, towels, toothpaste, etc. There is salt, oil, tea and coffee too, which is not always the case with such accomodation. Volker is very responsive, the check-in was easy and fast, really the only downside is that the pots and pans were small (it is rather annoying not to be able to cook enough pasta for two grown people in one go or make more than three eggs, for example), but that's not that important. The place is overall great, perfect for exploring the city. Would recommend.