As someone just starting out in AI development, I found this course to be highly satisfying. In particular, the highlights were as follows: ■ A must-listen course for any AI development beginner - It explains everything step-by-step from the basics so that even those new to Codex can follow along. - It wasn't just an introduction to features; I was able to understand the actual development workflow. ■ Easy to understand thanks to the project-oriented approach - By implementing various examples myself, I naturally learned how to use Codex. - I was also able to experience modern AI development environments such as Playwright, FastAPI, CLI, and App Server. ■ High-quality examples - The examples are not just simple exercises, but ideas that can be developed into actual services. - While taking the course, I often thought, 'If I apply it this way, I could even monetize it.' ■ Significantly reduces trial and error - I looked through various educational sites, but it was hard to find a course that explains Codex as systematically as this one. - I think a big advantage is that you don't have to waste time looking for a good course. I believe this course will be helpful to everyone, from those new to AI coding to experienced developers. However, if I were to express a personal wish, I hope this isn't just a one-off course. I would love to see a follow-up advanced project-based course that goes one step further—focusing on developing actual AI services and connecting them to monetization. I confidently recommend this to anyone who wants to learn Codex properly.