I fly CX, BA, EK, UA and SQ regularly. I recently flew the CX A350 on the SIN-HKG sector, and I found the business class seat quite impressive on this sector. The premium economy seat looked very comfortable too (I didn't fly any sector in PEY, but I sat in the PEY seat for a few seconds to check it out).
In economy, I found the CX A350 Y seat had good pitch and recline, however I did notice that this seat has a very soft seat back i.e. there appears to be no hard layer in the seat back. (Described in more detail in this
trip report - Links to external site).
This meant that I could occasionally clearly feel the knees of the passenger behind me in my lumbar region, through the seat back, when they pressed against the back of the seat.
I've not encountered this on other long haul seats, although I believe I have encountered this type of seat with no hard backing on some narrowbodies.
The seat is otherwise quite comfortable, but this could be an irritation on a long haul flight.
Has anyone else noticed this, or is it just me?