Positives:
The room was very well located and you could walk to almost all the attractions. It was clean and tidy and our communication with Ilia was very good as she responded immediately and was very helpful.
Negatively:
The first day we had no hot water at all. This was resolved the next day after contacting Ilia. The heating was not working properly and there were no extra blankets to cover ourselves. All the days we stayed there the temperature in the room was at 17-18 degrees and in the bathroom at 16.
The fridge often made a strange noise which during the evening hours was quite annoying.
The shower head at the bottom does not fit well, so when you take a bath, the whole bathroom is filled with water.
The money we paid during our stay was a lot compared to the facilities - functions of the room. If we were to visit Vienna again we would not choose it.