I am a long time minecraft development freelancer, server owner, and manage a service team of 40+ developers where we complete jobs for our premium clients. I have non-hesitantly recommended Project Orion to all of my developers who do not have as much experience in this field. Also, I am currently a computer science student at university, and was in the process of looking for internship opportunities. Before a technical interview with a recruiter, I actually re-watched the Java Masterclass to brush up on OOP and other concepts since the course was SO GOOD. I highly recommend these courses as they will literally take you from zero to hero and you will NOT REGRET spending the money because it will be so easy to make it back a hundred fold.