Virtuoso, Four Seasons Preferred Partner, and Dorchester Diamond benefits are provided by select elite travel agencies and include upgrades (when available, and sometimes at time of booking), free breakfasts, and value-added amenities (such as food and beverage credits, spa credits or welcome gifts) at many of the finest hotels in the world. Starwood has now invited 20 exclusive agencies to help implement their own amenities program that includes all their St. Regis, Luxury Collection, and W Hotel properties. Many of these properties were already part of the Virtuoso amenities program, but Starwood Luxury Privileges gives these elite agencies an opportunity to expand the benefits they offer clients. Amenities for the Starwood Luxury Privilege Program include: Upgrade on arrival, if available Daily breakfast for two guests Early check-in and late check-out, if available Value-added welcome amenity Rates are based on Best Available Flexible Rate and are not combinable with promotions. Starwood Luxury Privileges Program list of properties and amenities.