Couldn't be easier. Especially appreciated getting a text AND a followup phone call to confirm everything was delivered to the resort. All emails responded to very quickly and personalized so I was confident it wasn't just an automated system.
This was our first trip to Walt Disney World and we did not rent a vehicle so we were unsure how to get some necessities to our room. Garden Grocers had our order delivered to our room, on time as promised, we didn't even need to be in our room as the hotel made sure our items were placed in our mini refrigerator. Very convenient! Would highly recommend and the prices were reasonable.