Row 18 has significantly more leg room and no one to recline into you. Arm rests are fixed, but seat width isn't reduced as much as in the old version, as PTVs are wall-mounted and normal-sized in 77W. Front of the cabin is quieter than the back - rear toilets are shared with Y and can get busy plus people hang around rear galley for drinks/snacks or chatting with CAs. Little traffic comes through the front curtain from business class during the "night" in my experience.