Veeery good flat, very nice host!
The flat is very close to any public transport. 10 min walk to Wien Hauptbahnhof - it is very convenient to get from (to) the airport (15 min without any stops for €4.10!).
The flat has everything you can wish for (not only you need). It was like at home.
Valerie, big thanks for your Guidebook, we followed your advice.