I'm not sure if it's because the video was produced in the early days of vibe coding, but the quality of vibe coding books published on the market is much better, with abundant cases and examples. Also, there are many free lectures available, so if I had known earlier, I probably wouldn't have purchased this course. These days, the overall quality of Inflearn lectures is low. In the past, the quality was high because courses were created by experts and seniors, but recently, many courses are being produced by junior-level instructors, which has lowered the overall lecture quality. This course is one of those. I think it would be good to browse through various books at a bookstore before deciding to take this course.