I listened to the good class. Thank you. It's good for React beginners. Since I have knowledge of Vue.js, I was able to understand the lecture more easily, and it was good to be able to create a simple web app in about 2 hours. Learning the concept of useContext was the most helpful thing I learned in this lecture. What I regret after listening to the lecture is that I wish the progress was a little faster, and since it is a paid lecture, I wish the explanation of the lecture content was richer. For example, when covering UseContext, it covers the pros and cons, as well as the troubles and cautions that arise when overusing it.