Boris' flat is situated very close to the Westbahnhof where you have excellent metro and tram connections. There is a nice shopping centre in the Westbahnhof, too. Self-check in/out is a very flexible and useful solution and I had no problems to get to the flat with Boris' instructions. Safe location even if you come back to the flat in the evening, clean, quiet flat with all the equipment and furniture as shown in the photos. A small bottle of wine as a welcome gift was very kind of Boris. I recommend Boris' flat for your stay in Vienna!