we loved it at Christine's and Peter's apartment! The building itself is beautiful, the apartment is clean, comfortable and spacious. Although we bought a ticket to drive with Wiener Linien, we decided to walk a lot because most of the things we wanted to see where within a reasonable walking distance. Peter welcomed us, we were able to come in before check-in and leave our bags in order to discover some of the city, which was great. All in all, a great AirBnB with great hosts :-)