Ulrike was very welcoming and it was easy to communicate with her and arrange the check-in/-out. Her apartment was a wonderful place to stay - cozy, bright, clean, and central (things that I can evaluate as an Ex-Viennese). Within 10 minutes you are at beautiful Mariahilfer Straße and you are also quick in the inner city. You have subway and tram stations, a supermarket and - important for sporty people - gyms (e.g., two McFits) within walking distance. Highly recommended for a stay in lovely Vienna!