I think the dinner we had in the castle during Wishes is one of my favorite disney memories, ever! Now I do reccomend that you actually see the show at least once during your trip facing the castle. Inside the castle, it's a different but very intimate and magical experience. ask for a seat near the windows. (We were the second row back. When the fireworks start, they dim all the lights and pump in the music. The room illuminates with each burst of color. Some of the fireworks are actually shot off from the turrets just outside the windows. It was a loud boom each time and quite exciting. No you wont "see" the show. But you do see all the color bursts both outside and as it fills the dining room with color. With the music too, it was a very magical and special experience.