We had an amazing stay at Eva-Maria's apartment! The place is perfect for a couple. It has everything you need such as TV, WiFi, fridge, oven,stove and dishwasher.
You can check in/out flexible, since the apartment is using a smart lock. You get the code in advance and you can use either a phone application or the code itself. Some tips for the locks: pull the handle towards you while the unlocking processing is happening. As well, if the building door (outside) is locked you can just press "Top 4" and it will unlock it in a couple of seconds and will let you in the apartment building.
The apartment is at a great location - 5 mins from a metro station and a bus stop, 5 mins from a supermarket, 10 mins from the Schloss Schönbrunn. The host gave us the appropriete information in advance and was open for questions. We left very happy. We highly reccomend Eva-Maria's apparment for a nice stay in Wien! :)