The policy in the T&Cs is " Upgrades may include rooms with desirable views, rooms on high floors, corner rooms, rooms with special amenities, rooms on Executive Floors, or suites." The Asian policy per the website is Plat members are entitled to a suite when available for stays of three days or less. As a practical matter, many of us always get suite UGs in Asia because of this policy where in the US you are more likely to get a CL level room or a room with a better view.