Christian was a very nice host. We kept in touch prior to us being in the apartment and after. The information he sent via e-mail and available in the apartment itself is very valuable and proved to be a great way to get things done and organized.
The apartment is in the Vienna suburbs. It seems like a rather safe area, but not the most pretty part of Vienna, we would gather. You may get to the city center using the underground. It will take around 15 minutes, depending on where exactly you want to go. The underground is about a 5 minute walk away from the apartment.
There are shops nearby and supermarkets.