I've called out CBP for rudeness, hostility and general bad manners and bad attitude more than once, so the decent thing to do is to pat them on the back for a job well done. Yesterday. Ms. Carolinaflyr and I came back in through ATL. The entire experience could not have been faster or better. The Airserv "guides" were pleasant, smiling and welcoming to everyone, smiling and giving "Hellos" and "Welcome to the United States," and the two uniformed CBP people (passport control and dropping off the declaration) were the same. I hope this is indicative of a positive long term change. Well done, CBP.