We used Garden Grocer for our most recent Walt Disney World vacation. Prices are a little higher than a normal grocery store. However, the convenience of not having to find transportation to and from a grocery store, the saved time by not going outside of the resort or parks, the ease of having it delivered, and the confirmation of delivery was beyond what I expected!
We have used this service on two occasions; the orders were timely and correct. Excellent communication at time of order and apon my arrival to Disney Resorts as to status of order and delivery details.