It's being sold as an 'advanced course' for 319,000 won, but even after completing all the lectures, it was difficult to find any content that could be called advanced. For comparison, Laracasts offers lifetime access for about 420,000 won during sale periods and provides hundreds of high-quality courses. I regret my purchase because I cannot understand how they justified that price with this level of content. The course talks about Ruby on Rails as if it's a silver bullet, but realistically, it's quite difficult to find learning materials or reference cases for RoR. I chose Laravel as the technology to use for personal projects and actual work, and for those facing the same dilemma, I recommend waiting for a Laracasts lifetime access sale instead of purchasing this course. I don't usually leave reviews, but I'm writing this because I was greatly disappointed that it only covers beginner-level content, making the 'advanced' label meaningless. I hope this serves as a reference for those considering a purchase.