Lovely, modern and bright apartment in a very quiet building. Also very clean. It is only 5 stops by tram from Wien Hauptbahnhof, and then a short walk. The historic centre is also easily accessible: we walked to the museum quarter in 45 minutes ( including a nine- year old!). If you want to dine in the neighbourhood hidden gem is the Fabrik hotel, though not open during weekends. There is also a nice supermarket, Billa, only a few minutes walk.
Missed some tourist info, like a free map etc.