The apartment was lovely and modern, and exactly as pictured in the listing. Air conditioning in every room turned out to be very useful during the recent summer heat wave. The building is beautiful and located just outside the Ring, behind the Rathaus. We reported some issues when we arrived, and Constantin, Daniela and Fati were very responsive and resolved everything quickly. One thing to note is there is only one key for the apartment. This required extra coordination on our part as we were a group of 4, so might be good for future guests to know. If I returned to Vienna again in a group, I would hope to stay here again.