I was very satisfied with the introductory lecture. I wanted to listen to it for a long time, but I heard that Spring is very difficult, so I wanted to listen to the lecture after reviewing the Java grammar book and CS instead of listening to the Spring lecture right away. I was worried that I would get confused if it was because of Spring or my basics were lacking, but after reviewing the Java grammar a few times, I didn't have any difficulties because of the Java grammar. Since it was my first time learning Spring, there were many confusing parts such as @Autowired and many unfamiliar concepts. However, I felt that he tried to explain it in an easy way. It may be because it is an introductory lecture, but it is a level of difficulty that I can follow if I review it. I also liked that he talked about the latest trends in the field. Of course, it is 2023 now, so it may be a little different from the time this lecture was filmed. I look forward to the next lectures. My only concern is the amount of time and the time it takes to study. Still, the lecture content itself is good. I really want to do well in Spring someday.