My opinion Hartsfield -Jackson Atlanta international airport is the worse airport I have been and seen.
1. Nothing to do or eat
2. Lots of delays form airlines like delta
3. Things go complex on transportation inside and outside the airport
4. Hard for families to stay together because of the size in amount of domestic and international travelers coming in to Atlanta or to there other destination
It’s hard to avoid this airport but you may have a 50% out of a hundred if you don’t fly delta airlines.
And if you do end up in Hartsfield Airport Jackson Atlanta international it’s not the end of the world just take ten deep breaths and cope with it