We went to Mama Melrose's last year and really enjoyed it. DH and I both really enjoyed our food, especially desserts. They had some good choices for kids, my DD left full and happy. I liked the atmosphere, too - it was all around a great meal.
Are you going to try to catch Fantasmic? If so, you should see if you could book the Fantasmic dinner package with Mama Melrose's. Its included on the dining plan, and you get an appetizer, entree, and dessert for each person. Plus you get preferred seating for Fantasmic. We did this last September and are hoping to do it again this year!