BKK-CAI-DUS return. BKK-CAI on very old and run down B777-200. Business class seats the ultimate nightmare. No legroom and seat hardly reclines. The seats in Y class looked more comfortable. No menu only fish or chicken or beef poor quality of food. Blankets were out of stock. I was unable to view the IFE since the tiny screens could not be brought into position while the person in front of me declined his seat. There was simply not enough space. Amenity bags only available on BKK-CAI not on the return flight. No toothbrush eye-shade and earplugs available. Overall the ultimate horror flight. What a difference from CAI-DUS - new B737-800 with comfortable seats good service good IFE and food with a menu and blankets.