Was going to say, the one that makes it a not like other Centurion lounges is that Amex will still be allowing a great number of domestic Australian cardholders access.
"The AMEX spokesperson noted that despite the Centurion rebranding, the Sydney and Melbourne lounges will still welcome the same broad swath of American Express cardholders as before, confirming “who will be able to enter the lounges won’t change.”
Access to international Centurion Lounges is typically reserved for travellers holding the card company’s most exclusive cards.
On the local front, entry is provided with a flash of your AMEX-issued Platinum card while a broader set of American Express Explorer and partner cards from Qantas, Virgin Australia Velocity, Air New Zealand and David Jones – includes two free visits per year. "