Well, if you ever make it here to SAV, you'll probably be golden with S+.

I'm here at the SAV Passport Club, which I did enter with my Amtrak S+ (ClubAcela) card. The sign-in sheet asks to circle whichever airline for which one has club membership (airlines serving SAV are listed); I just circled CO. Amazingly, there's an attendant here who asked to see my card but said, "OK!" as soon as I took it out! I think she's around mainly to shoo away anyone who clearly doesn't belong. She also keeps the beverage area tidy.

In addition to the aforementioned amenities, there are copies of WSJ, and TVs listing arrivals and departures in addition to the TV tuned to Headline News (sorry, but I'll never call it "HLN").