We loved the location of the place (very near the Schwedenplatz metro station and a short walk to St Stephen's), the cleanliness and the space of the apartment. There was more than enough room for 6 pax! It is also rare to find a 2-bathroom place that is so centrally located! The 2 bedrooms were well appointed. There is a separate breakfast nook in the kitchen...which frees up and allows the regular dining/living room to be converted into a 3rd large bedroom suite.
We had a difficult time with our large suitcases; and our car pick up to the airport had a difficult time finding us as there was no direct road access to Griechengasse. The drop off/pick-up is in either of two different streets -- one requires a 50m walk on cobbled road and the other requires a climb of about 15 steps.
The apartment is on the top floor of the building, 42 steps, with no elevators. Access may not be the best for those with multiple, long-haul large suitcases.