Helena is lovely. She was so friendly and helpful, and very available. A great host - has even created a cool customised map of places to go.
Her flat is really well decorated...so styly! Loved the kitchen décor and the bed is very comfortable. The only negatives are as someone has already mentioned - the lack of privacy between the bed and the bathroom, the small shower and the morning light. But other than that, it's a great place to stay, close to lots of bars and restaurants as well as having Mariahilfer strasse and public transport only a short walk away.