Gueridon service involves preparing and finishing dishes tableside using a movable trolley. Food is partially prepared in the kitchen and finished at the table by waiters. This allows for showmanship and gives guests personal attention and a royal treatment, commanding higher prices. It provides entertainment and creates a sophisticated atmosphere. However, it requires more expensive equipment and space and skilled staff, making it time-consuming and potentially dangerous. While it offers advantages for customers and restaurants, it has become less popular as dining rooms have become more crowded.