5-star is not enough. If you see this place, just book. I was in the large room with three beds. Beddings were clean and warm, and I slept so well. All different kinds of lights were bright and pretty. Loved the hige ceiling, huge windows, mirrors, everything in the room. And the large shared bathroom, too. The location is at a nice district, right in front of the red tram line - zieglergasse stop. I could enjoy all the moments in Vienna thanks to the amazing place to stay and relax.