The apartment has a great location. You can walk to everything in the city center. It is a few blocks walk to both the U-Bahn and the tram for easy access anywhere in Vienna including the main train station. A grocery store is only 1 block away.
The apartment is very spacious and has lots of windows and good natural light.
The hosts are good at communicating and will give you recommendations for places to eat in the immediate neighborhood that have more locals in them than tourists. Always a plus!