We used it over Labor Day weekend this year. Our DS5 loved it a ton - in fact later in the trip we went by it on our way to 'Ohana's and he was begging to go back!
He loved that fact that he got to play video games, watch movies, play with cool toys, and eat dinner there. It was a win-win situation for us and him. He had a great time and the two of us got a few hours to explore the MK by ourselves.