I am an avid cook. Probably not the norm but I do a lot of cooking when on vac as it is the one time that all of the family can sit down together routinely for a meal without being interrupted with sport activities, etc... I wrote up my menu ahead of time. When I was told we would not be getting a rental car I was in a panic as I always grocery shopped at Costco and a regular groc upon arriving. I was a bit leery of not being able to pick out my own produce but the Garden Grocer quality was outstanding. My order was quite large. It arrived on time and was accurate. Very pleased with their service and will definitely use them again.
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.
So easy and reliable! Great communication as well.