I know I'm a little late to this thread, but I will say that BNA is by far my fav airport to fly in and out of for business.
TSA Pre is never longer than 5m, have never had to wait for bags when flying in, and rental cars are so easy in regards to getting in/out of airport.
I know that didn't answer any questions to the OP, but I still wanted to share high regards of BNA.