I guess many people think that today, you can find everything you need to learn something new (e.g. programming language, car tuning) on youtube or on other platforms.
To a certain extent, this might be correct, but there is no substitute for a well structured syllabus, good video lectures, challenging excercises and a supporting online community. Only by actually coding, you learn how to code. And in this course, you are required to code a lot. There are almost no theretical or academic questions. Most excerices are hands on coding excercises. This course teaches you C++ skills beyond most college or university courses. Therefore, if you want to learn C++, you are doing everything righty by enrolling in this course.