As a YouTube subscriber, I completed the Git lecture and purchased the HTML/CSS lecture. The strength of Yalko's lecture is that the curriculum is clean and the delivery is good, so the content is easy to understand. Although I am listening to the lecture, I am absorbed in it as if I am listening to a story. If you follow the lecture like this, you will see yourself understanding and acquiring the content at some point. I think it is a lecture that is worth the money. If you are thinking about it, I strongly recommend purchasing it.