Satisfied customers are more loyal, buy more and add significantly to the company’s revenue. Customer satisfaction is therefore a very important domain in marketing and self assessment of a company. Gauging it tells the concerned company how well its product or service fared in the consumer market. Studies suggest that customers who are satisfied with a company’s product are more likely to spread a good word about it.
https://www.feedbacq.co/blog/2018/10/10/what-customer-satisfaction-indicators-should-you-track/