I reluctantly tried FlameTree on a whim last year (I really loved Tusker House when it was a CS and I really hate eating outside so I had avoided FlameTree) and let me tell you, it was fabulous. I went with a colleague, who is NOT a Disney fan, and we both declared it to be great food - even better since it was inside a theme park.
I had ribs, she had pulled pork, both were tasty. And, the outside seating was clean, shaded, and a great view.