It was great because I could follow the lecture from beginning to end! As the reviews say, it was a lecture from 2018, so it was difficult to listen to it now in 2022 because the setting environment was very different, but I tried hard to catch up after seeing what people left in the inquiries. It says it's a 5-hour lecture, but I think it'll take a total of 8 hours, including the hour of struggling. Haha The setting time was longer than I thought. This is what development is like... If you follow along well, you can learn a lot in this lecture. If you listen leisurely rather than impatiently, there's a lot to learn in this lecture, so I recommend listening to it once!