About the course

So like I just paid for the course and begun to listen I took a few in to consideration. Does the course really benefit anyone who wants to become a good mechanic or learn these fundamentals to become a mechanical engineer ?

Well, to me - yes, it absolutely does. As an engineer you should know the fundamental basics and theory behind the action where mechanical content is just a direct logical outcome from physical processes... In other words you can't fix a broken tea pot unless you know how exactly it should be working...