Stayed at this apartment with an old friend who lives a half hour outside the city because we wanted to spend long days touring the sites and enjoy the Vienna atmosphere (it was my first time in Austria). The apartment was in a terrific location, very easy walking distance to the Museum Quartier and other major sites and nearby access to the metro and buses.
Thomas, the property manager, met us promptly with the key, as we finished up our coffee at a nearby cafe. He also gave us a comprehensive briefing on things to do while in the city and provided a tourist map. There were many brochures in the bookshelf with additional info if we needed it. We arrived before official check-in and just dropped off our bags. Even before the place was cleaned, it looked great. It's modern, the beds are really comfortable, the shower and toilet work well (so does the washer machine). It's also quiet, although it's near a major street. We weren't disturbed at all by traffic or cafe noise.
It's a terrific neighborhood, with plenty of restaurants, shops, and quaint old streets with beautiful buildings. Although this particular building isn't very attractive, the apartment was like an oasis. The building had a good elevator, which was handy. We walked everywhere, only occasionally taking a tram or metro. Thomas arranged transfer to the airport, which was reasonably priced. No hesitation to recommend this apartment for a short or long visit!