We stayed for a total of 4 days in the hotel, which was recommended to us privately. The journey worked great and the welcome was warm and friendly. We got any information about the location, the offers and the premises. The room was clean and tidy, though we did not like having an extra door for whatever reason it existed. It was very noisy. Great bathroom with rainforest shower. The breakfast varied and we thought there was everything for everyone. It was a shame, however, that there were problems with the coffee machine every day and it could not be fixed. The boiled eggs were ice cold however. Sometimes the waiting times for replenishment was too long. Unfortunately I had to wait at least 15-20 minutes each day for my scrambled eggs and I think that's definitely too long. With large crowds I would understand it but this was not the case. Particularly noteworthy is the restaurant "Nemtoi" where both a lunch and dinner menu is offered. We were welcomed and served perfectly. Both appetizer and main course were outstanding. Prices in the hotel Mercure Grand Hotel Biedermeier, Vienna are affordable. The room service was fast and the food arrived warm in the room. I ate the "Nemtoi burger" and it was absolutely ok, but I liked a burger sauce which is not just ketchup and mayo with the potato wedges. On the whole a great, nice, quiet and above all centrally located hotel. We will gladly come back and can recommend this hotel!