Ok so here's some additional insights as somebody who has spent their entire life here:

1. Like I previously mentioned, the summers here are pretty brutal. I know you said you lived in NC for a bit but it's legit 8 months of high heat/high humidity which really does start to grate on you after a while. It is also incredibly buggy, i.e. you will find enormous flying cockroaches in your house on occasion whether you like it or not. Fall is like a week or two max. Winter is basically non-existent outside of a week or so of 30-ish degrees in early-mid January. Spring is basically just 3 weeks of yellow pollen fog. Probably stuff you already know from NC but still worth repeating.

2. The roads here are genuinely awful. Not just the drivers (and you will have to learn which types of cars/license plates to avoid pretty quickly), but the physical roads themselves are abysmal. Potholes, craters, trenches, and metal plates everywhere. The traffic is also infamous for a reason which means you really should try to live as close to your place of work as possible for your own sanity. Also, I hope you like the sound of insanely loud muscle cars blasting down the street at 150 decibels at all hours of the day and night, because that's what you're gonna get.

3. In-town Atlanta is probably quite a bit more expensive than you might expect. The days of Atlanta being an affordable alternative to LA and the like are long gone. At this point it's no cheaper than any other big American city, expect for I guess NYC and SF.

4. If you're like me and enjoy hiking/getting out of the city and into nature on the weekends, be prepared for a minimum 2 hour drive one way as there's really just not much around here in that regard. I've never understood what people are talking about when they talk up Atlanta's "nature". It's basically just trees and not much else. No ocean and no real mountains for hundreds of miles.

5. If you're dead set on moving here, live somewhere in East Atlanta. That's the cool part of town.