Yes, we went when it 1st opened, and enjoyed it. The food was good, (except the eggs--- they are cooked hard as rocks, so if you don't like them that way, request to have them soft scrambled), the cheese potatoes were delicious, and the variety was good. We especially enjoyed the fresh fruit and variety of muffins and sweet rolls served before the main course. The orange juice and coffee is free flowing, so you can have as much as you like, and they do have other drink options, as well... just ask. Our service was great, and the managers stopped by the tables to see how we liked our meal.
The Akersaus restaurant is gorgeous, and really lends itself well to the atmosphere of a storybook castle.
The characters were wonderful, and special mention is made concerning Snow White and Jasmine... they were wonderful, as were the rest. That day, Snow White, Jasmine, Belle, Mary Poppins and Aurora were there, but I have heard that Pocohontas, Mulan and Alice in Wonderland have been know to make appearences.
If your older son isn't interested, and your family doesn't mind splitting up, I am sure that your younger son would love to see his favorites. Just note that not all princesses are present everyday, and they may not know who will be there until the morning of your breakfast.