Does anyone know about or has used the Audiomasterclass Music Production & Sound Engineering Online course ? The web site is

I would like to know if its genuinely good and whats said about it on the web site is fully true or not before I decide whether or not to go for it. The content of the course is what I am looking to learn. Just want to ensure the authenticity of the site and that once the money is paid (which I have to in advance), all the study material does come. Has anyone done this course ?

Also, would be grateful if any suggestions can be given for any other such courses which can be done online and are economical.

Thanks in advance.