I would highly recommend this service to every-one. We saved lots cause we had Breakfast in our room 8 days out of 11. We did run low on water so recommend 2-3 bottles per day per person. Water in the parks cost $2.50 to $4.00 per bottle. Note - Room tap water does not taste very good and is warm out of the tap.
I wrote a brief review of Garden Grocer here: http://www.lovelogicandlaughter.com/2014/06/disney-tips-and-tricks-disney-world.html
Very Convenient and Great Service!!