We stayed in many apartments during our trip, but this was the best. It had very positive vibes the moment you enter in to the flat. Superbly clean. Close to public transit. Interior was carefully designed.
It had all the amenities one may need for stay. As compared to other stays, it had fan as well considering it was hot in June when we visited Vienna. We also liked that the host has provided small small things like salt/spices/thermometer/watch (believe not every apartment has these). It had cute coffee mugs. :-)
Comfortable mattresses and pillow. While I did not interact much with the host but whatever messages exchanged she was prompt and polite.
Only one thing to keep in mind is that the flat is in backyard of the building. when we were taken to it, we felt little skeptical but as soon as we entered the flat it did not matter.