In my opinion, it's not a vacation if I have to set foot in a grocery store. It's so nice, especially with young kids, to get into the room after a long, trying day if traveling and be able to relax and have what we need for the morning (like coffee!).
The groceries beat our luggage to the room! :)
We were traveling to Disney World with our two Grandchildren who are both toddlers. It was so convenient to be able to order diapers, snacks, and other necessities to be delivered to the hotel instead of having to lug everything with us! Everything was delivered as promised. I highly recommend this service to anyone.