Westin is a full service luxury hotel, where you will have a good chance of being upgraded to a suite. As a plat , you will have lounge access that includes
breakfast in the main buffet restaurant in the basement, or in the lounge. Evening canapes in the lounge can be a full dinner. If it is your first time in Seoul,
you will probably find the concierge service invaluable.
Aloft, as you know, is a bare-bones brand.