It was perfect!
We used the service for the first time in a recent trip (1/24/2015) and was completely pleased. We are long time DVC members and like to prepare our own meals (reduce costs and reduce time waiting at a restaurant to order/get/pay for our food) using the kitchen in the room. It was great not having to spend time going out to get groceries and gave us more time to enjoy WDW (ordering also reduced the impulse buying that always happens when you go to the grocery store - saved more money there too). We will be using this service from now on!!!
Great idea that is much more affordable to stock up on beverages instead of paying at hotel/parks.