Overall, the lecture time is short, so there is no burden, and the answer to questions is fast. The disadvantage is... They explain by showing the already written code in PPT format (If you click, the existing code flies away and the code is added smoothly) Even without that, since I listen to the explanation while looking at the unfamiliar code structure in PPT format, it is hard to understand the flow of the code and follow along. You may think, "Since there is a lecture code on GitHub for this part, why don't you just copy and paste it?" But if you intended to do that, you should have saved the code by branching GitHub by lecture section part.. The GitHub lecture code was already completed code, and it was very tiring to compare these codes with the lecture I am currently listening to and copy and paste them.. I listened to the server part lecture at the beginning of the lecture and ran passionately for four hours without stopping, but when I entered the front part, I thought that the tuition fee was too expensive compared to the lecture quality, but I thought it was because I got really good answers when I asked questions, so I let it go. Lastly, since it is not a seminar like a technology tech, I think there will be more people who dislike this kind of PPT-style lecture than who like it. Furthermore, the code is not that complicated or long, so I think it would have been better if you had added explanations while typing the code together. Following the lecture with PPT, it really ㅠㅠ is so tiring for the listener. I just clicked the “I watched” button for the latter half of the lecture and skipped over it..