We were welcomed by Herbert's father, a kind man who informed us about the museums and city centre of Vienna as well as about the surroundings of the city.
The apartment is situated near a big supermarket and a metro line (both 2 min walk) which stops at city centre and Schönbrun palace. All rooms in the apartment were very clean and everything was there to have a great holiday in Vienna! I would recommend this apartment for a city trip.