Vienna Calling is very comfortable, clean, well decorated and furnished, and in a quiet location. It was exactly what we were looking for for our short stay in Vienna. Leon was a great host. While we didn't get to meet him, he made it very easy to access the apartment. He also left suggested tours and information on seeing Vienna, as well as some basic breakfast items and fresh fruit for us. We really appreciated everything he provided for us and we would definitely return here in the future if our travels bring us back to Vienna!