Wolgang's apartment was the right choice for our stay in Vienna. It was perfectly clean and few steps away from a couple of tram lines, making it super easy to reach the metro lines and the city center (which was reachable by feet anyway if you don't mind walking for 30 mins or use a bike or a push scooter). The house has everything you need and the surroundings were quiet, close to shops and to some nice bars and restaurants.
Wolfgang and his wife were super nice guests, our plane had a major delay and they gave us the opportunity to do a self check-in at 4 am in the night. They also let us leave our luggage at the apartment before our departure the last day. I would definitely reccomend this place!