An analysis of U.S. and UK consumers shows that customer experience is highly correlated to loyalty. Customer experience leaders have more than a 16 percentage point advantage over customer experience laggards in consumers’ willingness to buy more, their reluctance to switch business away, and their likelihood to recommend. A modest increase in customer experience can result in a gain over three years of up to $382 million for U.S. companies and up to £263 million for UK firms, depending on the industry. While the case for loyalty is compelling, companies should determine the business impact that customer experience has on their specific business by following our five step process. To achieve these results, however, companies must create customer experience metrics programs that embed these measurements into how they run their business.