We had a wonderful stay in Vienna at Clemens and Gabriele's place. Our hosts were absolutely flexible and let us in earlier than we had agreed, because we were travelling with two small kids and they were getting tired. The apartment is in a nice renovated building and new and clean as a Jaguar car in the showroom. The location is also perfect, very peaceful but a few steps from tram stations. It was pretty easy to get around town even with the children! We also got recommendations from the hosts, which proved to be useful. All in all, Clemens and Gabriele offer a real quality stay!