This is a wonderful appartement, spacious and comfortable, clean and stylish. We felt instantly at home, and our children loved it as well. Alice made us really feel welcome. It has all the things you might possibly need for a few days (or even a few weeks) of exploring beautiful Vienna. It is very close to the main tram lines and other public transport, but supermarket, nice bars, the centre and many cultural sites may be reached on foot as well. We parked our car at Spittelau P+R.
Small remark: although the street itself is not very busy, you may expect some noise from the traffic at the two parallel streets. Noises tend to echo through the street, and on summer days, you want to leave the windows open for some fresh air.