They do have table seating. I don't recall the exact floor plan, but it has several four-person booths and a few two-person tables.
It is my understanding that NC used to contract with a vendor to provide foodservice similar to an Amtrak cafe on the Piedmont, but the contract was not renewed and they replaced the foodservice with complementary snacks and drinks. The snacks are generally Gem doughnuts or Cinnamon buns in the morning, and chips/pretzels/cookies/candy bars/nuts in the evening (basically everything you'd find in a vending machine.) The drinks are coffee, hot chocolate, tea (iced/hot), soda, and juice both morning and evening - exactly what you'd expect. You are limited to one drink and one snack per person, on the honor system.
It's not fancy, but it's free and very popular. The trip is only 3 hours 15 minutes each way, so the snacks are quite satisfactory. I have to wonder whether other short-range corridor trains couldn't be run this way too.