Excellent hotel that provides great value for the money. The spa was phenomenal and the fitness center very well equipped. The breakfast was better than anything I experienced in other similar level hotels, including some much pricier ones. And the location along the danube was very welcome, as was the sight at the back of the hotel. I also found it convenient for getting into the city center, with a straight bus just outside the hotel and taxis/ubers that were reasonably priced.
With two dining rooms, one a la carte and one that provides a great buffet dinner, no guest would be likely to go hungry for long.
Finally the staff, mostly super friendly young people with healthy sense of humor, went above and beyond to be helpful with advise and help needed for transportation and information (and I needed quite a bit of advise as my trip was a bit complicated with people to meet and places to go to).
The room was also lovely, (other than perhaps a more convenient desk space would have been nice for laptop users, though likely most people don't come to work at this hotel).
All in all, highly recommended for your stay, be it short or long, solo or with family/colleagues.