Probably the best apartment and host I have ever encountered during my couple of visits to Vienna. Not only was Michael quick in response to my inquires, but also he let us stay couple of hours after the check out time. He is very friendly and made me and my family feel comfortable from the very first minutes of our meeting.
The apartment was very cozy, clean and in a very convenient spot. It is just 2 minutes away from the U6 Niederhofstraße metro station.
I highly recommend!