I am satisfied with the lecture because it contains things I want to implement, such as file upload, security, and shopping cart. However, I think the querydsl part is too poorly explained. I don't want to hear that big tech uses querydsl, so our country is following suit. I want to hear that querydsl is used to implement certain functions in this way, but it was a bit of a rambling... It was a confusing part to understand what you were trying to say. Since the difficulty level is beginner, it would have been better if you had given a little more reason rather than simply saying that querydsl is used like this, so follow along. Other than that, it seems like a really good lecture to go through one cycle of a project using React and Spring Boot. Thank you.