When we arrived Peter was waiting to show us around and was really helpful and friendly! He spoke perfect English too! the location of the apartment is about 2 minutes walk from Westhahnhopf station and was easy to find. Also there's supermarkets and lots of food places in the station if you got hungry!
the apartment was quiet, clean and as described. It was perfect for us and we really enjoyed Vienna.
Christine and Peter were great hosts and we would definitely recommend them and the apartment!