Christian's flat is outstanding. It was much better than I anticipated and it's very roomy and spacious. The bed is very comfortable as well. I had a very long day of traveling and Christian made sure getting into the flat was simple for me and he even left me a small bottle of wine and some chocolates as well as a welcome note. Little things like that really make you feel at home.
His flat is about a 15 minute walk to St. Stephen's Church in city center so it's nice to be able to have the hustle and bustle of the center and then a more relaxed atmosphere to return in the evening.
I'd highly recommend Christian's place and would plan tot stay there when I return to Vienna.
Thanks, Christian!