Prices are much better than what you'll find in the resorts. It was so nice not to have to eat every meal from a restaurant
We stayed in a Villa at Animal Kingdom and the ability to have goroceries delivered right to out hotel allowed us to get the most out of our Villa. With kids of different ages we could each eat breakfast as we awoke rather than waiting for everyone to get ready and then head out to a sit down breakfast. Saved a lot of time and a load of money. I would definitely recommend using Garden Grocer for anyone who stays in villa type room at Disney with a kitchen/kitchenette.
We ordered our grocery a few days before our trip and they were in our room when we arrived. Everything was fresh. Perfect!