We stayed in the cabins at Fort Wilderness and wanted some essentials, breakfast supplies and a case of bottled water in our cabin. The groceries were brought to our cabin and put away-- couldn't be more convenient! Also was a great money saver for us. You can bring bottles of water to the parks with you, which we did every day.
Produce was in excellent condition and lasted our entire trip of 9 days. Will definitely use again.
Easy to use, wide selection, comparable prices and groceries were waiting on us when we arrived. Doesn't get much better.