I was very impressed with this service...It was sooo nice to have this all arranged before the trip (but I almost packed our return tickets in our checked luggage...didn't realize there were more tickets in the book and I needed tickets when we left the hotel)
When we got to MCO we first went outside, then they directed us to a counter inside (couldn't miss the CM's with the big mickey hands pointing us in the right direction)...There was a small line where you check in...just let them know how many pieces of luggage you checked, show tickets & ID...and then you go lto another line- by hotel. We were the only ones in the poly line and they put us on the bus right away (w/WL, GF & Contemp). I could see some of the other lines had 20-30 people in them, but I'm sure as soon as their bus came they'd all go on one bus.
The little movie they show on the bus gets you really excited...and the movie on the ride home gets you in the mood to plan another trip!!!
Our luggage was delivered to our room less that 4 hours after we checked in. And there were no problems (except that it was the only ride in disney that made me motion sick!)