We contacted the host months before our trip and she was very helpful. She's arranged for us to be picked up at the airport and was at the flat when we arrived. The apartment was lovely, very clean and well decorated with everything you need (maps and guides, coffee machine, toiletries, iron, fridge and cooker etc). We were able to talk to the host all trip and she helped us with everything we needed (directions, travel info). She was very accommodating and we would recommend to anyone who wants to travel to Vienna.