We stayed one night here and everything was pleasant. Before our arrival we asked Marta if could get the keys a bit earlier than 3.00 pm and it was feasible, thank you Marta! The flat itself is refurbished. It's about 10 mins from Mariahilfer strasse. If you arrive by car you have to find a public garage in the nearby as no parking place in the street but Marta can help you in this too.