I took this course as a beginner in Android. It was very satisfying because it was structured to learn from the basics to advanced, rather than just learning Java, Kotlin, and Android development superficially.
The instructor also taught me how to study by referring to the official Android documentation, which was very convenient when I studied alone later, and it gave me time to get used to difficult documents, so I think I gained the ability to study on my own :)
If I were to recommend a study method, I think it's good to follow the lectures and practice at first, but if you study by dividing the lectures into chapters and organizing them, you can learn the concepts well!!