We had a great stay at Jan's appartment. It is spacious, well-equiped and clean. Its location is a bit away from the center of Vienna, but we didn't mind because we like to walk (and there is a bus station right in front of the building, in case you don't feel like walking for 20-25 min !). Jan was very reactive and helpful, he gave us several recommendations for eating and sightseeing. Perfect spot to visit the city and rest quietly and cosily :)