I have completed three RN lectures by various instructors, but I felt that Instructor Kyo's lecture was the best. (I am a backend developer, so I did not take the NestJS server-side part of this lecture.) 1. Project composition that allows you to experience various requirements You can follow the project from beginning to end and use various and realistic requirements, components, and libraries, so even if you only take this lecture, you can gain enough information to create the app you want. It is a lecture that allows you to develop an app with complex and diverse functions that does not feel like a toy project, but is actually serviceable. (The overall lecture quality is relatively and absolutely the highest among all the RN lectures I have taken.) 2. The instructor's ability to explain is excellent I think that knowing something well and doing it well and the ability to teach it to someone are separate abilities. What I felt while taking the lecture was that Instructor Kyo is not only highly skilled in RN, but also has the ability to explain it well to others in an easy-to-understand way. Thanks to this, I was able to complete the lecture easily. 3. Pleasant lecture environment (4K) Usually, other lectures are uploaded in 1K, but this lecture was filmed in 4K video, so I was able to take the lecture while feeling like my eyes were being purified. Just looking at the fact that they consider not only the lecture content but also the lecture environment, I think the overall lecture quality cannot be anything but good. What was especially good - Lecture video quality (4K) - Bonus lecture content (direct modification of libraries, image optimization, etc.) - The level of the app developed together in the lecture (an app that reflects complex and realistic requirements of the product level) I listened to it after work, so it took a long time, but it was a really fun and informative lecture. Thank you! If you make another RN lecture on a more difficult topic, I will definitely take it!