Birgit's place was very suitable for our stay in Vienna. It is close to the city, you are there within 5mins with the metro, or can choose to go by citybike or foot. Travelling to Vienna by car is not recommended, but if you choose to do so beware that you must pay for parking and cheap options are to be found outside the center (it was doable, but required some planning).
The communication with Birgit was easy and helpful, and the apartment was clean. We would recommend this place to others for their stay in Vienna!