Mariahilfer Street apartment was very comfortable, clean and well located. Grocery and shops of all types within a city block or two. Apartment is every bit as nice as the pictures indicate. Access to a superb citywide underground rail system is half a block from the apartment, so you can get to or from anywhere in 'Vienna. We were at first concerned that we would have difficulty finding our way to the apartment on the underground, but we quickly figured it out with Christoph's help.. A welcome place to stay..