Oliver and Raphael were gracious, flexible, and responsive. I had several changes of plans prior to and during my travel. My hosts were flexible and accommodating throughout and provided a much needed late check-out free of charge. Check-in was easy and Raphael was waiting for me upon arrival. The apartment is clean and comfortable and provides everything you need for a stay in Vienna, including a great hair dryer. Close to coffee shops, supermarkets, restaurants, Danube canal and U4 metro. Easy trip to and from airport. Highly recommend.