Overall, apartment itself was good and modern, the host's manager Nina was very friendly although we had to wait for a good 15 minutes in the cold before we got in the building (I guess that could happen). The most important issue was the fact that there was a horrible sewage smell in the building and the apartment itself - we had to keep the windows open throughout the harsh weather in order to reduce the smell impact. I STRONGLY suggest making sure they took care of it before booking this place.
Currently at this state, this apartment should not be listed on Airbnb.
In addition, although everything is 15m by foot (Marienplatz, Karlsplatz), the neighborhood itself is really bad, my wife and I didn't feel safe at all and didn't get out of the apartment after dark.