First of all, as someone who is studying Rails for the first time, I really enjoyed reading the guide with someone who has experience rather than reading it alone. Beyond the guide, I also enjoyed looking at the guides for some unique third-party technologies and applying them!! However, in my case, I have been using Spring technologies for almost 3 years, and I have experience developing Mustache and Thymeleaf, so it was easy to understand, but I think it might have been a bit difficult for someone who is “really new to web development.” If there had been an additional part explaining which objects in Rails’ MVC pattern receive, process, pass, and create views for the user’s request, it would have been more helpful for “really new to web development.” In addition, it says “actual project development skills,” but is the server-side rendering method still widely used in the Ruby camp? I think it would have been better if the front-end was provided separately and the Rest API was created. In fact, HTML work is a bit of an area of indifference, right? If there is a future lecture, it would be good if you talk more about MVC, exception handling, end-point testing, etc.! Since it is a bit expensive, I actually had higher expectations than other free lectures, and I apologize for leaving a long review because I feel a little disappointed!! The process of creating CRUD while reading the reference together in a short period of time was really great!!