On the whole Orlando International Airport is a very enjoyable airport to transit through. The only two problems seem to be security queues and rental-car check-in queues. The security issue has significantly been improved over the 12 years I have been transiting through the airport albeit queues could be around 15-25 minutes at peak times over at Concourse B when the Virgin Atlantic British Airways & Lufthansa International flights depart. The problem with rental car check in has been improved in the last few years. The worst does seem to be Alamo however Dollar seems to be the best contender especially during peak times around 14:00-17:00 with queue to car (Side B) in less than 15 minutes. Overall Orlando is a great and relaxing airport to transit through and I would recommend it to anyone traveling to Florida especially internationally. With the expected terminal renovations it should make the experience even better.