I wrote a brief review of Garden Grocer here: http://www.lovelogicandlaughter.com/2014/06/disney-tips-and-tricks-disney-world.html
Great service. Great savings.
Great service for guests visiting Disney properties! Prices are significantly less than using the convenience stores in the hotels or eating out for every meal especially breakfast. I spent $140 for the week which covered all breakfasts and most beverages for a family of 5.