Rubin is one of the most sought-after tour operators in China for luxury travel, a field that has changed dramatically in the 16 years that he’s been in the industry. He exhaustively researches new openings—the Banyan Tree Shanghai; the Mandarin Orientals in Guangzhou and Shanghai—and cultivates local contacts that lead to insider experiences: a helicopter ride from Beijing to the Great Wall, instruction in the game of weiqi, or a private calligraphy lesson.