This is an honest review after taking the course. There are both advantages and disadvantages, but it would be good to listen to it according to your characteristics. First of all, the overall course evaluation is satisfactory. Those who are usually not good at starting may be attracted to the key point of "try it first and gradually learn the theory". I have always wanted to become interested in app development, but due to my personal job and circumstances, I have limited time, and I have a personality that I have to quickly learn the theory to get started, so it takes a long time for me to start something new. That is why I have not been able to easily get started on app development, but as the instructor said, the barrier to app development is very high, so if you learn the theory one by one, you will get tired quickly, which really resonated with me. This course is about installing app development tools, typing in development code, and 'developing first', and understanding 'this code is this, that code is that' in the process of developing. So, for those who have difficulty starting, I think this is a clearly useful lecture in that it helps them get started. After actually running it, I gradually became interested in the development tools and codes, and I felt that "there is nothing better than running it." (Thank you for the good lecture composition.) Advantages: 1. Highly recommended for beginners. Easy to explain. 2. Despite the high barrier to development, this is a lecture that provides the execution power to overcome the barrier. 3. It helps those who spend a lot of time planning and studying theories to get interested in development and have a beginner's mindset. 4. It explains the key points that are necessary, so it is interesting to watch the video and follow the development, and it is amazing that I can develop myself after listening and following along. 5. There is no part where I get stuck and get lost. I have listened to the development lecture twice through another app (CreX) before, and I often face situations where I can no longer move forward while listening. However, this lecture does not have any parts that get stuck until I start developing. (Often requires Googling) Cons: 1. The lectures tend to go a bit too quickly (I personally don't see this as a disadvantage), and you may often have to Google terms or codes. (Personally, this became the reason why I became more interested in development. When I get stuck, I actively look them up to complete the development??) 2. The voice is a bit soft (I personally like powerful voices) 3. The lectures are short (this can be an advantage or a disadvantage), and I look forward to the next lecture... 4. If you want to do some app development, I recommend a lecture with a bit more difficulty These are honest reviews.