Disney Quest for a 4 and 6 year old?

[georgesgirl1]

When we go for marathon weekend we aren't going into the parks, but we wanted to try something we have never done before. Our 4 and 6 year old love playing in the arcades at the resort, so I thought they may enjoy Disney Quest. Is it worth it? Are there any DVC or Disney visa discounts? Can you leave and return on the same day or is your ticket done when you leave? Is the food court decent? Any info would be appreciated...