We had a late flight in to Vienna and Claus arranged for someone to meet us and let us in. Everything was explained to us and it all worked very well. The apartment is in an ideal location, just around the corner from the Spanish Riding School as well as the Albertina Museum. A map of the city with the apartment highlighted was present. Also on the map was the location of a nearby bakery (!!) and a market which was very convenient. The apartment accommodated all 5 of us easily and it was very cosy. There are many restaurants and cafes nearby and the neighborhood was safe. We had a very good experience.