It seems like a really good introductory/beginner course for beginners who are new to Subdi. I liked that it worked with as many examples as possible, and at first I was a bit impatient to follow the numbers one by one, but after the middle, I started to find texture looks that I was interested in, and it became fun to change the numbers and experiment as I pleased. In fact, there are many lectures that I can't watch as time goes by because there are functions added and parts that change over time in these software lectures, but since the first lecture was posted, there have been many additional lectures and node updates, so it seems like a lecture that is good to watch over and over again. Custom nodes and fxmaps are also interesting, as they are hard to find? Subdi functions!