Manager was extremely rude and aggressive. Along with another couple, we had to wait some time in reception to speak to the manager, as he was getting his croissant from the breakfast room.
After complaining that the 2 rooms that I booked were not the same, i.e. 2 x twin bedded rooms, one was twin bedded with 2 armchairs and a coffee table, while the other was a double with no armchairs. After complaining about this, the manager offered us a 'garden' room which had twin beds and one armchair, so we took it. after that we discovered that there was no telephone and no Wi-Fi. The TV in the new room only had terrestrial TV, so not other language channels as in the other room. I believe the manager did this to spite us.
I believe that the room was originally a single room, as there was only one bedside lamp and in a strange position.
Maintenance was poor in some areas. In our first room, the bathroom sink was badly cracked with some of the glaze missing. A health hazard?
Would we go back to Vienna? Yes, most definitely.
Would we go back to this hotel? Definitely NOT, even though the other staff were very kind and helpful.