We use Garden Grocer every time we go to Disney which is several times a year. The groceries are always there when they are scheduled to be there. I love that after I place an order, I can add stuff that I might have forgotten to add originally! I have only had to contact customer service once and they were quick to remedy the situation - (missing potato chips). I highly recommend them and several of my friends have now become loyal customers as well!
It was wonderful to just arrive and have everything here waiting for us. We just checked in and bell services brought up our food to our room. Super easy all the way around. Great service to use while on vacation!!
My one tip would be to BOOK EARLY. I started browsing 3 months out, but forgot to order until a week before our trip and there was only ONE delivery date left. We still got our stuff, but it was on day 3 of 8!