We stayed in Vienna for a week. Michael and Matthias went out of their way to accommodate our family, which includes small children. They provided a lovely crib, made it possible for us to arrive a bit early, and stored our luggage in their offices before our late-night departure. The apartment is filled with light - a clean, warm and welcoming space. They had thought of almost everything down to the last detail - including a dedicated space at the entrance for wet and snowy shoes and clothing, and plenty of kitchen accoutrements. There was sufficient hangup space and many drawers for storing clothes. We had our laundry done outside, but it was great to have a machine and hanging rack for the items that needed immediate attention.
The location was perfect for a family - grocery store and pharmacy across the street, and with the tram is right outside the door, and it was so easy to get everywhere we wanted to go. We also loved exploring the neighborhood - the walk down Langestrasse is wonderful, as are the hospital and uni areas.