Rainer was a great host who responded quickly to any questions and situations before and during our trip. He even accommodated our early arrival to his apartment in Vienna which was a great help. Rainer's apartment is exactly how it's described and the location was excellent for tourists like us. Most of the places were walking distance from his apartment and we only had to take a train just a few times during our stay. During the winter time, his apartment stayed warm and comfortable. There are 3 separate beds including a sofa bed and it's convenient for a group trip. Beds were also very comfortable to sleep. Everything was sparkling clean. I highly recommend staying at Rainer's apartment when visiting Vienna. I know I will next time.