I grew up in Charlotte and on Arthur's. When I was a child, it was Arthur's or the Cafeteria's in Southpark that were your food options while shopping. They were also social beehives, where you ran into anyone and everyone on a Saturday or Sunday.
The go-to staples are the burgers, chicken salad grinders (made with turkey breast, btw), and the salads with the buttery homemade croutons and homemade dressings. The sweet tea is divine, as well.
I was pleased to see on a recent visit, that not much has changed. The food is still excellent, many of the same workers are behind the line, and you run into folks you know.
A nice addition - they now sell the "perfect" croutons by the bag for $1.99!