We had a wonderful time at Helena's flat. It is in a great location--a 15-minute walk to the museum district, and in the heart of a trendy area full of shops and restaurants (which include many vegetarian/vegan places and options). We saw a side of Vienna that we hadn't seen before, and we fully intend to come back! As for the flat itself, it is brand new--everything works perfectly, the kitchen is fully-equipped, and most of all it is full of style and comfort that make it cheerful and homey. All of these things make a compact space feel huge inside, including the enormous bed-sofa comfort zone that makes you re-evaluate all your plans in the morning in favour of lounging in bed with another coffee! Helena herself was kind and attentive as a host without in any way being intrusive. We wish we had had more time, but we'll just have to look forward to a return visit!