Fantastic location in Vienna. Next door to the Naschmarkt which has great produce and a lot of places to eat. We were lucky enough to be there on a Saturday when the flea market was on.
Apartment was good although to get to the bathroom/toilet you had to walk through the second bedroom which woke up my daughter during the night.
Also make sure the host tells you the street number of the apartment. We weren't given it and it made finding the place difficult. Obviously.
All in all a good place to stay.