This was a spacious, well appointed and conveniently located apartment that made our stay comfortable. Location and quietness are two of our main priorities. Tram 2 was a few blocks (perhaps 3-4 minutes ) easy walk that came often and took us into the city center for our visits to the Hofburg and Kunsthistorisches art museum. There is a Spar grocery store right by this stop, which made it convenient. Tram 5 was slightly closer (maybe 2-3 minutes walking) and that ride took us to the Praterstern underground station which very quickly took us to St. Stephen's and Schonbrunn and easily connected us to our day trip on the Danube. Tram 5 also came often and was always waiting outside the station every day of our 5-day visit. The station also houses a grocery store.
On quietness, we didn't hear a single other person, although someone's dog barked a lot at midnight every night, echoing through the courtyard, which this apartment faces. Fortunately, I had earplugs and Lucie kindly provided a floor fan for background noise. So it wasn't as disruptive as it could have been.
One tip: On finding the apartment, look for a building that has a mural painted on it and Lucie's apartment is just about across the street.
We had loads of space in this apartment. Both beds were very comfortable. We had all the supplies we needed plus coffee. We felt it was a very safe neighborhood. And Lucie provided great tips upon check-in. This was a great way to avoid the city noise but also have a convenient location to everything we visited.