It was a very pleasant place!! Heidi was really nice and let us leave the luggage before the check-in time, and gave us some freedom the last day so we could enjoy Vienna till the last minute.
At the first moment it's easy to feel like at home in this apartment and find every single detail very useful. The bed is great, you can really have a good rest to charge energy. It's really closed to the center (2 stops from Stephanplatz by U-bahn) and next to the Ringstraße involving the museums, City hall, and Parlament.

Highly recommended!! Thanks a lot Heidi! will come back to you for sure :)))))