I don't think I have the words to describe how beautiful and comfortable the apartment is. Everything you could hope for has been thought of already by Leon.
The photos in the advert are very accurate, but the apartment is actually a bit more spacious than the photos make it seem. What the photos don't show is how comfortable the apartment is, how clean it is and how comfortable the bed is! The apartment is in a great location but very quiet at night, so you'll definitely get a good night sleep.
Sadly, we didn't get to meet Leon but he was very helpful over email and the phone. He has gone to every effort to make sure you have a great stay in Vienna and is a fantastic host. My fiancee and I did not want to leave!
I would recommend this apartment to anyone staying in Vienna.