We saved over $150 on beverages at Disney by bringing in our own 20 oz. beverages and pouring them over a free glass of ice, (20 oz. bottles of soda and water cost $3 there.) We saved $200 by eating cereal, fruit, juice, milk and yogurt in our room and avoiding the Polynesian's quick service counter which served the same. Plus, we bought chips/cookies for evening snacks.
Very impressed with the level of interaction and service. Even though you place your order online and receive email and text confirmations, a live call is also made to both confirm your order was received and delivery of your order. I would highly recommend.
So convenient!! Our family uses Garden Grocer every Disney vacation!