Wonderful stay at this apartment. We (3 of us) were met by Peter at the entrance of the building and even though the building was being renovated the apartment was very clean and had everything we needed.
Location wise it is near the Westbanhof and from there you can take the tube/tram to city center or other attractions. Vienna is a lovely place that I need to come back and when I do I will hope to stay at this place again. Thanks!!