At first, I took the free Dart lecture and became a fan of Code Factory after taking the Flutter beginner's lecture with gratitude. The correct use of widgets, the correct use of callback functions, and the neat code organization that you always do at the end were the biggest lessons for me. I briefly coded in a dBase compiler language called Clipper in my mid-20s, and after 30 years of not developing, I started Flutter again for app development as I was approaching 60. And, I have recently read many free and paid lectures and books to learn the basics of programming. Among those many lectures, I think Code Factory's lecture is the best of the best. I was greatly helped by the beginner's lecture and I have been waiting for the intermediate lecture for a long time, and when the intermediate lecture finally came out I paid right away that day and am studying hard. I am currently about 60% of the way through and I think it is a lecture that is better than I expected. The advantage of Code Factory's lecture is that it clearly explains what you will learn, how to use it, why to use it, when to use it, and where to use it. Most of the other lectures I have seen tend to neglect or skip over certain parts, so I often miss the connection and feel regretful, but Code Factory's lecture is not like that. It seems that you have prepared the lectures a lot. In addition, you seem to have a great talent for teaching. Oh, and~~ As an additional advantage, your voice is also really good. I highly recommend that those who are starting Flutter, or those who are no longer beginners, and even those who think they are intermediate, take Code Factory's beginner/intermediate lectures. Once you take them, you won't regret it. I think you will become a true fan like me, not regretting it but being satisfied. Thanks to Code Factory's lectures, I have gained confidence in programming, so after completing the intermediate Flutter lecture, I plan to study the backend and create a Flutter app using Firebase as my own server. ^^;; I'll end my course review by saying thank you for making such a great lecture once again.