This is just my opinion, but if you're going to any restaurant on Disney property more for the food as opposed to the atmosphere, you bear the risk of being disappointed. With the exception of some of the high-end resort restaurants, I can't think of a single restaurant that thrills me because of the cuisine.
With respect to Fulton's specifically, we ate there once because we needed to get out of the rain and there was a 90 minute wait at the Rainforest. I wasn't impressed, but it wasn't terrible either. But as with most Disney food fare, if I was charged that kind of money for that quality of food anywhere else but Disney, I'd be upset. But hey, you're in the middle of the greatest vacation destination in the world, and if you're there for haute cuisine, you've made a terrible mistake. Get into a park, have a $5 hot dog, and relax.
My suggestion for great food near Disney is to go to either of Emeril's restaurants at Universal. That will eat into your wallet as well, but at least you'll be eating well.