This apartment is just second to none - a Schönbrunn class of airbnb, and you would offend it by calling it a mere flat. We loved it from the moment we walked in. It is fantastically spacious, stylish, equipped with everything you may need and gives you the opportunity to indulge in a bit of luxury - the bathroom deserves the name. Plus, you stay in a space that is true and imbued with a soul, not just an artificial interior, and you feel welcome and at home throughout. The location? You can't beat it - all the shops are literally around the corner, and if you feel peckish, just walk out the door and cross the street. The Hofburg is within a leisurely walking distance along one of the major shopping streets, and there're an underground station and bus stops just 50 yards away - but there's no noise to bother one, mind you. As for the host, his genuine (I cannot stress this enough) hospitality and powerfully positive attitude is something you feel from the very first moment, and it continues throughout, emergencies included. Next time I happen to go to Vienna, no further search will be necessary: Otto-Bauer-Gasse it's going to be.