The curriculum is well-organized, and the explanations are simple and clean, which is good. It is easy to understand because the progress is shown visually through pictures. As the introduction says, it is focused on the core, but it covers the knowledge and principles that you absolutely need to know, so there is no lack. I was frustrated because I didn't know what was going on even when I just looked at the GitHub webpage, let alone push, but thanks to this, I quickly got used to Git/GitHub. It's fun.