I like smaller airports, as it seems like you get better customer service when there's less competition and crowds. I've been in and out of this airport for years, both as a Charlotte resident and as a transfer hub, and I've never had a bad experience.
My favorite airport moment at Charlotte-Douglass was when I returned late one night and had to get to my car, which was parked in the remote lot. I'd spent nearly all my money on the trip, so I was working on a wing and a prayer to be able to pay my fee to get out of the parking lot.
When I got my stuff in the car and pulled up to the gate, it was standing open! Nobody was there! It was a Thanksgiving miracle! I drove on out and went home with three dollars still in my wallet!