I booked my first Thai flight on TG 665 (PVG-BKK) in coach, which was on an actual 77W, walked thru C class to get to my seat, loved the layout and couldn't wait for my BKK-MEL the next morning.
Unfortunately I got TGed on 461, downgauged to a regular 773.
IMO, shouldn't the day flight get angle flat and the night flight get the lie flats?