The apartment is bigger than it looks in the photos - there were 8 of us, and there was plenty of room. We all fit around the dining table. Our hosts responded promptly to every question, and we were very comfortable. The Keplerplatz U-bahn is only a 5 minute walk from the apartment, and it is only about 15 minutes from Keplerplatz to St. Stephan's, which is more or less the center of things. Thank you for a wonderful family vacation!