Wow this is a fascinating trip report!
It seems that both Star Alliance carriers need some work on improving customer service. I agree that 737 is not really designed for any flight above five hours.
Honestly after reading your report, I am not sure if I am ready to fly ET yet. However the cabin interior looks pretty nice and the new business class seats are seemingly in good shape. At least the F/As are friendlier than Egyptair.
Thanks,
Carfield