First of all, he doesn't give lectures himself, so there is no supporting video. Most importantly, this book is also called a review book. Its characteristic is comprehensive, and all knowledge points can be found.
Too many knowledge points are easy to get lost and find the direction. In addition, his notation is not used to it, and it is a bit difficult to practice, so I still don't recommend it to ordinary people.
But what is special about him is that he not only teaches you routines, but also explains the essence and thoughts of your routines, so that you can still cope with the next topic even after it is deformed.
His whole book is not recommended. There is a sprint of 400 questions. If your goal matches your level, you can try to do it.