First, I think reviews might vary depending on individual circumstances. For those hesitant due to the price, checking reviews by low rating might be helpful for reference. First, considering that people with development knowledge who can develop apps are likely to take this course, it would be good to see which of the situations below applies to you. 1. You're incredibly good at app development but have no app users. You can take it. It covers areas developers might not deep dive into, like mindset change and marketing, and also covers the basics of advertising, so if you watch it and learn by searching online, it might not be bad. 2. How do you make over 300 apps? You're curious about the know-how for prolific creation. I recommend not taking it. Of course, it might be because development stacks vary and only basic concepts are covered in the lecture, but the part about prolific creation is less than 30 minutes in total, and the direction is also vague. It might have been better to cover it a bit more deeply, even if it were limited to the instructor's stack. This part seems to need some enhancement in the future. I am also running a business with app services and doing all the marketing and advertising, so the know-how on prolific creation was my reason for purchase, which made me feel quite disappointed..!