Finally traveled on this beast, in Y on AC156 yesterday. Upgrade did not clear and the flight was completely full. Definitely a sardine experience made worse by being on a red eye flight. Seems to be more height room as the bins are foldaway but leg room is poor with the box sticking out from the seat strut. The IFE is bigger and more responsive. The light/FA controls are in a terrible place with numerous passengers turning lights/FA buttons on/off all the time.

My upgrade did not clear and I did not expect it too as I believe there were several pax with higher status whose upgrades also did not clear according to the lounge. However, a bunch of teenagers walked by while I was seated and they were discussing how two of their friends got upgraded because one of their moms was friends with a AC staffer.