I live in Newnan and have found it to be a great alternative to PTC, while life in the Truman show town would be nice, houses in Newnan are cheaper than PTC, was able to buy a nice house at a fraction of the PTC comp.
Newnan is growing too and I think in a positive way, we have our own shopping areas like PTC at Ashley park. Schools may not be as high ranking as PTC but there is private school options nearby.
Takes me 25mins to the airport lot. Traffic is probably the same as PTC. I think the traffic is so much better down south compared to areas like kennesaw/marrieta ETC, seems most people that work in downtown live north and jam up 85/75.
Low taxes, decent area, close to work make Newnan a nice area to raise a family. Obviously even like PTC you have to drive to get to premium shopping centers toward the city, but you have everything you need. Old to new housing, many options