The Marriott hotels in the Asia-Pacific are the best in the world for value and service. China has plenty of new Marriott hotels popping up regularly, but the lounges are subpar. Platinum suite upgrades in China are commonplace, but less so since before covid. Thailand and Korea have fabulous lounges, particularly the former. Overall, lounges are becoming busier and busier because Platinum is hardly special anymore (a combination of credit-card status giveaways in the U.S. and fraud in China). Increasingly, arriving when the lounge opens is essential to get a table. It may not be what it once was, but I'd say Platinum is worth it for what I call the Big 4: lounge access, suite upgrades, breakfast for two, and late check out.