Experienced a one-day delay due to maintenance issues with the plane. The staff’s response at the time of the delay was extremely chaotic and difficult to understand. Many customers were completely unaware of where to go and what would happen. However, American Airlines offered comfortable lodging for the evening, and the next day went smoothly. In-flight services were also quite good. My only suggestion might be the quality of the economy seats. Japan Airlines economy seats might be a good reference in terms of comfort. Nevertheless, still pleased with American Airlines’ service on the second day.