I do not think any type of improvements need to be made. Was super easy and it appears you have perfected your service :)
Buying water and breakfast items saved us a ton of money and time at the parks.
We were visiting Disney World and ordered a few items like water, soda pop, snacks and breakfast foods. When we received our order we were missing the toaster pancakes. I called customer service and Wendy was very helpful. She placed an order for delivery the next day. It arrived just as promised. Thanks for the wonderful service.