Christian's place was awesome! You get a truly authentic viennese experience while staying at his place. We truly felt at home during our 4 nights' stay. Great amenities, it is at 2-3 minutes walk to Billa or Hofer supermarkets. The tram station is at 3 min walk and the underground is at 7 min walk distance. Christian gave us tips regarding what is worth visiting, which tour should we try and where the local cuisine is good and affordable, at the right price. Be sure to follow his instructions, you will not regret! We were "lucky" enough to stay in Vienna during the hottest days since a very long time, but the house is such well built that we did not feel discomfort at all. All in all, if i get a chance to visit Vienna again, I would definitely stay at Christian's place.