I paxed with AMM (sorry FCA!) LGW-CUN and back in Nov 03 in G-OOAL 763.
No complaints about the onboard service whatsoever, but 2-4-2
in a 76 for a 10 hour sector is far too cramped (I assume it's the same on BAL/MYT aswell?).
At the time I flew, the CC mentioned that the existing 76's were due to have leather seats fitted throughout over the Winter - I guess that's been done now.
They also mentioned that PTV's and quite a few additional airframes were coming.
Nicest Y Class 76 I've flown in is NZ, which is 2-3-2 with foldy-in headrests and seat pitch of 34" as standard - v. welcome as it was across the Pacific!