I'm new to this but could someone explain how the Emerald Aisle works or make sure I have it straight so we don't have any problems when we get there. I have a reservation with Nat'l it says "Full Size or your CHOICE at the AIsle" using Coupon code and dc contract number. Now when I get to Orlando I proceed to the Emerald Aisle and pick out a car. Question part: Do I pick out a full size or if there is a minivan/suv there can we take one of them instead for the same price as the full size? Silly question part does someone help new people doiing this? I also have read where people have discrepancies on their bills so from my reading I may have to go to the counter when we return the car to resolve any problems so should we allow extra time for this - does it happen alot? Thanks - sorry so long leaving next week and want to make everything try to go smoothly.