Customer complaints is a blessing to a company. Discuss?

Customers who complain to your business care enough about your company to want you to change for the better.

Most people who are unhappy with a company will not bother to tell the company what is wrong with their product or service. However, these people WILL TELL everyone they know about how bad your company is....costing you potential customers.

A customer who will complain to you could keep you from losing potential future business.