I've never taken the class, but as someone who plays semi-professionally, it sounds like the class would be a great start for someone who has played poker recreationally and is looking to understand some of the basic strategies of tournament poker. It might turn a losing recreational player into a small winner at lower stakes, but it by no means would all of a sudden make them some sort of professional.

It sounds like the course introduces concepts that would otherwise take a while to learn by yourself (M, implied odds, etc); however, understanding those concepts alone won't make you a winning player. Experience and surrounding yourself with other successful players are the two biggest factors. Most online pros have literally played millions of hands and have other poker friends to discuss strategy with. If you don't have those two things it's very difficult to succeed playing poker professionally.