They are lovely copple and super nice host ever!
They are very open minded, peaceful and kind. I felt very comfortable and really didn't want to leave there.
I became very loving Vienna maybe because of them :)
The location is also nice, a few mins to supermarket, the metro staion is just there but you can walk to the city center takes about 15mins(or maybe less because I'm very short and walk slow)
Highly recommend, no, here is the one if you have plan to Vienna!