Nikola deserves 7 stars. His communication was perfect, he provides you will coffee and snacks, his place is BEAUTIFUL, and he's extremely nice to boot. My time in Vienna was marred by the fact that I got very sick, but Nikola even looked up info about a nearby late-night pharmacy for me. He also allowed us to check out a bit later than 12 because I couldn't leave the house earlier to get train tickets. Again, the place was beautiful and has nice perks like a nice kitchen, nice speakers for listening to music, and a nice TV that I used to watch a football game while I was sick. Grade A experience. I'll need to go back to Vienna and when I do, I'll look for Nicola's place as my first option.