The apartment was clean, comfort, warm and had everything we needed for 3 days. The location was just perfect - the very center of inner city. We were in 2-10 minutes walk from all the sight, shops and restaurants. Communication with owners was immediate and very friendly.
Be ready to take your luggage up to 2 level by stairs.
There were actually one bathroom (bathtube + double sink) and separate toilete.
It is almost impossible to park in the district to unload the luggage and Parking next to the apartment is pretty costy (about 5 EUR/h), so if you travel by car, think of leaving it at P&R and getting to the apartment by U-ban (Stephanplatz station is in 5 min walk).