Costco Optical offers outstanding customer service, with staff like Nandi and Jimmy providing a welcoming atmosphere at checkout. Customers appreciate the great selection and quick service, often reporting a wait time of around 10 minutes. The integrity of employees is commendable, as shown when a lost iPhone was safely returned to its owner. Many customers express high satisfaction with their experiences and products, including helpful advice on frame size. Dr. Woo is noted for her fantastic care, effectively addressing vision issues and making patients feel heard. Overall, Costco Optical is praised for its service, products, and attentive staff.