Wonderful stay at Christian's place. The apartment was huge, bigger than what we thought. We were 5 travelling from Prague,Vienna then to Budapest, Vienna was our second stop.
Christian was super helpful. He gave us tips about where to go, where to eat. He even gifted us a Viennish cake? (how do you call that?) it was delicious! The apartment is clean and beautiful, there's 2 bath rooms so if you're quite a big group it's a faster queue for a shower. Towels were provided as well. We were quite surprised of the toilet's design, it was quite an enlightenment :P
Christian insisted that parking is quite difficult in the city center, but I guess we got lucky, and found a parking slot fairly easy. Definitely will come back again if we visit Vienna :)