Gerhard was an excellent host - easy to communicate with and very responsive. The apartment is beautiful and the location is excellent. There are many restaurants close by and lots of shops. There is a bus stop right outside the door and the metro station is an easy 10 minute walk away. The metro/tram/bus system is very easy to navigate and it takes less than 20 minutes to get into the heart of the city. We would definitely stay here again should we come back to Vienna.