1. Gueridon service involves preparing, cooking, and plating dishes at the guest's table using a mobile trolley.
2. Trolleys are used for hors d'oeuvres, salads, food preparation/flambeing, cheeses, and liqueurs. Equipment includes flare lamps, gas stoves, chafing dishes, and carving boards.
3. Advantages are highly personalized service and increased customer satisfaction from watching preparation, while limitations include slower service and lower seat turnover. Safety is important when using the trolley.