An economy seat is never going to be great for over 12 hours in the air but a new plane, relatively well kept helps. I have been lucky enough to get exit row seats each time I have flown. The standards seats are torture except when the plane is pretty empty. This has been the case about half of my flights so far. Staff are pleasant. Flight involves a stop in Brussels in both directions of about 40 minutes. No need to get off the plane. [Seat 13G on a Airbus A330]