Efficiency
It is about simplifying a process as much as possible , so the product or service must be efficient for the client and must allow them to save time on a certain task.
Compatibility
You should try, as far as possible, to offer a product or service that is compatible with others that the customer is already using .
Empathy
From the moment the consumer discovers the product until he or she buys and uses it, doubts may arise. It is essential that the customer service is friendly , since the user is not only looking for answers, but also for understanding from the brand.