Coding courses have never worked for me. I would end up watching the whole course, but feel like I learned next to nothing at the end. This includes YouTube videos, Udemy courses, ect. Project Orion does a really amazing job at teaching. The lessons are both easy to understand, as well as interactive and fun. Matej is an amazing teacher, and has always answered my questions when needed!
Since Project Orion, I have moved away from coding Minecraft Plugins. However, my knowledge of the Spigot API, as well as Java, has been easily translated to other projects, and even completely different coding languages. I have never taken another course on Programming after Project Orion, and don’t plan on taking one ever again!