It took a long time to complete, but I was able to learn solidly from the basics while grasping the core concepts. While watching other Rookiss lectures, I learned a lot by realizing many differences between when I create things myself versus how an expert does it. First of all, as I mentioned above, this lecture allows you to properly learn the basics and core concepts, so it's a very good lecture for review even for those who have already learned, and while it may be challenging for beginners, it's definitely a lecture with many strengths. I highly recommend it.