The MBTI assessment is a self-report tool—it gives you answers based on what you report about yourself—so in one sense, it won’t tell you anything you don’t already know. But knowing something and being able to use it effectively in your life are two vastly different things. Most people enjoy taking the MBTI assessment, and when they get their results, they feel affirmed in that they’ve received an accurate description of their personality. Many go on to set new goals and improve their decision making and relationships.