I just flew in this seat.
I'm amazed at the inflation situation here. The seat seemed to adjust every few minutes on its own. I found that very, very annoying.
I assume the point is that the pressure in the seat has to compensate for the pressure in the cabin, so it inflates and deflates as altitude and internal air pressure change.
I couldn't get it to stop - nor could the flight attendant.
I would not choose this again.