There is a term «customer satisfaction». This is a general name for metrics to understand the convenience and usefulness of the product: how quickly the customer copes with the task and how much he enjoys the process. It is considered as the principal aim.
But the simple ambition to satisfy a customer is something like a fight for all the good against all the bad. This is not enough; there still must be a profit for business.
When creating a feature, you can just specify what the user will get and what the company will.