The atmosphere of this restaurant is superb. it offers sumptuous décor with a magnificent view of Gralin square, especially at night when the Opera is illuminated. However, the waiters will judge you if you do not wear a tie, and may speak to you and serve you differently. However,the service is quite fast. As for the food, there are other cheaper restaurants in Nantes that are far better. You will be paying more for the views and décor than for the food, but it is a landmark of Nantes that has to be visited.