Petra's place was a great choice for our time in Vienna. Uber is very cheap and makes the city accessible within 5mins even though the location is a bit outside the city center. The central courtyard of the building is very peaceful and plants and ivy add a wonderful tranquil element to the place. Just down the street is a street market and City Bike rental station which is how we got around for basically free. This place seems out of the way but it isn't! The only critique I could give is that the door is a little concerning since it only locks from the inside which I view as a fire hazard, but besides that the place was all we excepted it to be.