Sandra was one of the kindest, most responsive hosts I've come across on AirBnb. We made our booking really late on the day before, a friday night, and Sandra responded to my messages and questions almost immediately. The apartment itself is beautiful, spacious and modern. It's well located with shops and cafes within a 2 minute walk and there are trams right outside the front door. But we honestly just walked everywhere, it took us 30 minutes to get into town. Sandra also gave us some fantastic tips for the night life in Vienna :)