May be a bit off-topic:
Got a supplement card today and it is in the US plat card style. No "platinum" on the front, and a smaller "platinum" on the back below the card number.
Not really busy. Centurion area have more guests somehow but I don't know it has voucher for guests until checked amex website.
May be try again next time got dinner in the city since they say I can entry multiple times.