This document reviews customer satisfaction and loyalty. It discusses how customer satisfaction and loyalty are important for business success. Satisfied, loyal customers purchase more goods and services over time and provide positive word-of-mouth advertising. The document examines factors that influence customer satisfaction and loyalty such as service quality, expectations, and perceptions of quality. It also explores the relationship between customer satisfaction and loyalty, finding that satisfaction positively correlates with loyalty up to a certain point, after which small declines in satisfaction can lead to large drops in loyalty.