I went to Atlanta this summer, it must have been the worst airport experience ever. It took over 2 hours to get out.
You have to be screened before immigration, then reunited with your luggage and then you put it on a train, you are then screened again as you have had contact with your luggage and could have taken a gun out. Take your shoes off, stand with your legs apart and DON'T drop your arms below your waist, or you get yelled at by an enormous, enormous customs lady with an Alabama accent. You then have to get on a train and meet your luggage, which comes up on the carousel in the main PUBLIC terminal, for anyone to have access to!!
The car hire desk will tell you they don't have the car you booked available and can only supply you with a more expensive one, tell them to stuff it, you'll go elsewhere, and report them to whoever you can think of, surprise, a car becomes available.
Lovely lovely Carribean porters who stay with you the whole time you are arguing with car hire desk ( 45 minutes) and load your (10) cases onto the courtesy bus and say, pay me what you think Ma'am, worth every penny, if you can grab one, you'll need it with littles with you.
Going back was a doddle, as long as you leave all your cases unlocked and show your guns and ammunition !! Do not leave any film in your luggage, it will be fogged, put it in your hand luggage.
Good business lounge, Delta airline were brilliant, fantastic business class too, service far better than Virgin Upper class.
Great shopping malls, massive and great nail bars, manicures for 15$, walk in, no appointment.
We stayed in the wierdest hotel, the W, all black and minimalist, DD and friend had a huge suite and two bathrooms, and two bedrooms, kitchen etc, we had one too, all for 99$ a night per room.
Have a great time!