My family and I love LTT Character Dining. It is a must do each year. My DS who is 8 and my DH both love the food, I personally think that it is good not great but good. To me, this is the best location for character dining because the characters take their time at each table and are not hurried along.
So, if you are mainly going for the characters you will be pleasantly surprised and should enjoy it. However, if you are going only for the food, you might be disappointed.
But keep in mind, that the LTT Character Dining is going away the first of January. So try it once, it will probably be the only time between now and then that you will get to experience it as it currently is.