Marco is brilliant in all means homeowner.
The address is close to museums and metros (especially Volksteatre). At our 3 days stay we almost did not used public transport, from home we got to Hofburg, from Hofburg to Stephenplatz and then by walking to Vienna Opera. I mean all city centre was close to address and can be walked.
Marco really helped us when he allowed us to remain bags at home after checkout and we was free of bags till our night flight.
Also Marco is really approachable and helpful during all our stay.