Circle K is a small convenience store known for its fast and friendly customer service. Many customers appreciate the hard work of the staff, especially a worker named Mark, who goes above and beyond to help. One customer shared a story about how Mark assisted with a coffee spill by bringing out rags and cleaner, demonstrating genuine kindness without expecting a tip. While the store is tiny, it has a cool atmosphere and provides a good experience overall. However, some customers noted a quirky staff member who gets upset about excessive creamers. Despite the store's size, it offers great service that keeps customers coming back.