Andrija‘s place must be the best place to stay in Vienna. :-)
The apartment is beautiful and spacious, with really nice furniture. And of course super clean! It is located on a pedestrian street between the first district and the Prater. So you are close to all the places in the inner city, the parks along the Danube channel, the Danube itself, and the Prater. You are even close to the trains for day trips to the outskirts of Vienna.
Andrija is super nice and helpful with everything. He can show you a whole new world. ;-)