It is a great course for beginners and a solid foundation for writing own plugins.
The important basics are taught in the course and are where a really nice start for me to understand coding.
I never really coded before and am now able to write own plugins, maybe not yet the most complex plugins, but i am still learning, like everyone is. You cant teach every possible scenario in an course, but this course gave me a great start so im am able to handle problems by myself and learned how to get help.