It was a very big airplane but the sales never took off.
I was lucky enough to experience it on my last trip.
It was short trip between Narita and Inchoeon.
Other than the fact it is being big, I did not see anything special.
I noticed one thing that is that it held just too many people when you get off.
It took long time to get on as well.
I rather fly Boeing 787 or Airbus A350. They seem to fly faster and quieter.