I have transited many airports in Europe and the US and think that MCO is one of the easiest to get around. It is also one of the more pleasant to wait in as there are plenty of stores to browse and different eateries to select from. Plenty of seating and natural lighting too. What you have to know is that the airside gates are away from the main terminals connected by an elevated tram system. Because of this I would suggest you do any eating or shopping before going through security as the options airside are somewhat limited. Although there seems to be a Starbucks in all the airside gate areas so I'm happy. They have gotten much better with security the last 3 times I've been through (June October November 2009) I never had to wait more than 15 minutes to be screened. Arrivals both domestic and from international have not been a problem either. Passport and customs is pretty smooth and you can now choose if you want to take your bag with you on the tram after clearing customs or put it back on the belt and collect it in baggage claim. This is a wonderful option for those that just want to get out of the airport as quickly as possible after a long plane ride. All in all a pretty pleasant airport to transit - miles better than IAD or ORD but my favorites will always be AMS or MUC.