A great apartment to stay in, close to the Schönbrunn Palace and 5 min from the subway (Meidling Hauptstrasse). 5-10 min walks from the grocery stores and a wonderful vegan restaurant just around the corner.
The easiest way to get there is by taking the train from the airport to Wien Mitte Langstrasse and then take the U-bahn U4 to Meidling Hauptstrasse (towards Hutteldorf).
To get to the city from the apartment just take the U-bahn. The train leaves every 5-6 minutes.