Rainer met me and was very welcoming and helpful. The flat is four flights of stairs up with no elevator if that is an issue for you. The flat was clean and overlooked the inner courtyard. The room was clean and comfortable. The WiFi was in and out in the room. They have a repeater that kept loosing the link. I had to go to the common areas on the second day to check email and use the WiFi. I saw several other people staying at the flat and the common areas were not as clean as the room. The location is great to see all the city center by foot. Overall, it was a pleasant stay.