I strongly recommend this apartment due to its perfect location, high standard and very easy communication with the host.
We arrived late evening and there wasn't any issue with it.
Apartment is situated very close to city center and it's extremely easy to get there. Apartment is fully furnished, spacious and clean.
We appreciated very much water, tea and coffee left for us :-)
Thank you Kiki&Mary for hosting us!
Katerina
P.S. We've been already planning to be back as there are so many things to see in Vienna that one week is not enough :-)