Apartment is located quite close to public transport and it is very easy to get to the city center in couple of minutes. It is also very clean, easy to enter (instructions are great), modern, well equipped. We did not talk to host during the stay but we communicated via messages and they are extremely supportive and fast in responses.
Still, two downsides of the apartment:
- it is located somewhere along the railroad and you can hear trains when passing by - it is not a big problem as they stop commuting during the night but still not the most quiet place to be
- windows are overlooking a pleateu from which entrance to the surrounding buildings is provided, which means you cannot keep them open when being away as people are passing by - it is not the large issue but still something to have in mind
Overall - place to be recommended if you are visiting Vienna for couple of days and want to stay in location from which everything is easily accessible.