Daniela's place is great- it's in a great location within walking distance to Schönbrunn Palace, close to train stations, and is a lovely space with modern amenities. Daniela's husband was there to greet me and show me the apt- he even helped me figure out how to download and work the Vienna-wide parking app which was extremely helpful and necessary for us with a rental car. Prior to that, Daniela had been in good contact to prepare for our stay.
I'd definitely recommend this place and these hosts! Thank you both!