What a great service to have if you have a fridge in your hotel room, like we did at the Grand Flordian Hotel. It was a blessing to have bottle ready milk for our babies in the night...yes, we brought twins babies and their brother, age 4, to Disney!
I've already recommended you to my sister, who is visiting WDW in a few weeks.
We were able to eat breakfast and supper at our resort during our Disney vacation thanks to Garden Grocer. That way we only ate at a restaurant for lunch while we were at the parks, and that was just right for us. It was also nice to have diapers delivered to us because we like to pack light and do laundry in our unit. We didn't need to check any luggage!