Simply amazing. Everything at the appartment was perfect for our long stay. It's definitely THE place to stay during your visit to Viena no matter the time required.
It's well connected with the public transport, but we love to walk so always prefered to take a 20 min walk to Mariahilfer Str. or 25 min walk to the Wiener Staatsoper.
Don't hesitate to book Marlies and Dominik appartment, they are wonderfull guests and will exceed your expectations too.