We had a perfect experience with Garden Grocer. Our order was exactly as I had ordered on their easy to navigate website. The customer service was excellent and couldn't be better.
I would recommend this service to anyone going to Walt Disney. Our groceries arrived during the time that we asked and we received an email while we were in the park letting us know that our groceries were delivered.
One bag of our order was missing - I don't necessarily think Garden Grocer was at fault (hotel may have misplaced) but GG replaced the next day without complaint. Thanks!