Worthwhile string, because I'm sure I'm not the first to notice that non-QF OW carriers have varying responses to the rather turgid colourscheme of the Platinum card, compared to the instant recognition of Gold.
Fellow WP'ers you must've all seen it - the lounge greeter who holds your card to the OW status chart squinting - now, perhaps, through bifocals given the OW status symbol has shrunk on new design cards.
General experience: AA - good; BA - F checkin / lounges excellent, J - variable bordering on suspicious; AY - any - excellent; EI - never flown 'em; LA - any - good to excellent, generally latter; IB - any - poor to excellent; CX - any - generally excellent.