I studied Spring through other lectures and focused on projects, but I wanted to stick to the basics, so I started with the introduction. It's still burdensome to complete the roadmap, but I felt good about purchasing it after looking at the basics. I don't really like listening to lectures and I have low concentration, but this lecture was well-organized, so I progressed smoothly. Also, the instructor's voice and tone were bright and not drowsy, which was nice. Usually, when I followed the Spring lectures, there were many cases where I didn't know why annotations were used or what - many instructors didn't explain, but while listening to the lecture, I learned how Spring works in the big picture, why it's better to use b than a, why this annotation is used, etc., so this lecture was really good because it focused on understanding the whole picture! Thank you. I'll keep listening to the lectures on the roadmap in the future!!