If you are looking for a nice place to stay in Vienna - book Sibylle’s flat. It’s very comfy, has everything that you need for a relaxing stay with a home-from-home vibe and is in great location. We walked to the very centre of Vienna (it takes about half an hour of leisurely walking), then got back by a tram later at night. There’s a tram stop 150m from the house, very convenient. Underground station is not far away, there’s a supermarket (Hofner or Aldi as we know it in UK) a 5 min walk away.
Sibylle is a lovely host, very thoughtful and accommodating.