I booked Christine and Peter's accommodation for my mother and aunt. They really enjoyed the apartment, which was very close to Westbahnhof station and had a very good connection to the central districts of Vienna. The street that the apartment was located at was very quiet (with the exception of ambulances passing by occassionally). The apartment was clean and spacious for two people. The communication with Christine was great and every issue was resolved in time. I would recommend this accommodation to any travelers visiting Vienna.