Well, first, it won't tell you your number's decorating style.... or favorite T. Swift Era... but it does detail all the information you'd want to know about your type when you are first learning the Enneagram, so it's a bit like buying a book about your type. The assessment itself has been refined over time with feedback from participants to make it more accurately assess. It's a progressive survey - so the questions change as you answer in order to get more precise understanding of your core motivation and instinct. What I like best is that it acts like a coach in your pocket - when you are stuck in a hard relationship or have a hard time seeing why your perspective isn't resonating with other people, you can go back to the report to get some insight on what YOU are prioritizing and how that might differ from others so that you can grow in your own relationships and self-awareness on the fly!