Kai was from the very begining helpful and highly responsive. He advised us where to park our car safely (P+R in Vienna is awesome and cheap, so there is really no worry Kai doesnt have his own parking spot to offer).
We found his flat quickly, the location is great! 5min walking from The Rathaus. Kai's home is exactly the same as shown on photos. It was peaceful and clean.
We would choose this place again :)
Thank you Kai!