Don't forget that anyone can use DME, whether or not they are flying a 'participating' airline!! All travelers can use the yellow DME luggage tags that will alert the baggage handlers at MCO to take your luggage off the plane and deliver it to the DME luggage truck. You, and your family, will go directly from your plane to the DME check-in desk, get your voucher stamped so that they know you have arrived. Then onto the bus and off to WDW. Meanwhile your luggage is being put on a different truck, and your stuff will be delivered to your resort room within a few hours. Our stuff got to us 1/2 hr after we were able to get our room.
Then, when it's time to go home, you can just leave your luggage with bell services and then return when it's time to board the bus. Get your luggage from bell services and the bus driver will put them under the bus and it's off to the airport where you will proceed as you normally would. Bags get checked, you go through security. The only thing that using a 'participating' airline does is allow you to 'check' your luggage right at your resort, thereby removing the hassle of taking it with you to the airport. This service is run by the TSA not Disney. Yes, it's very nice to get on the bus and go right to security and not have to lug bags around. But do not misunderstan...every traveler can use DME when they arrive at MCO. If you want to use a towncar, that's okay too. Just wanted to be sure you fully understand how DME works and save you the money you would spend on a van or limo...if that is an issue for you. I know it is for us!!!