"Customer feedback" refers to the opinions, comments, and suggestions provided by people who have used a product or service. It helps businesses understand what their customers like, dislike, and how they can improve. Full definition
Before reaching its current form, several iterations of the test were developed, modified, and enhanced based on customer feedback from multiple research studies. (myplan.com)
Think of customer feedback as indispensable, not threatening. (entrepreneur.com)
But in order to gain value from customer feedback, you have to know what to ask and how to ask it. (realtormag.realtor.org)