As mentioned in the course introduction, the price is high, but I can say that it really provides high-quality materials and lectures. I was surprised by the delivery and composition of the lecture, but I was even more surprised that the quality of the handouts was better than I expected! What I liked most was that monitoring and load testing were not simply used for "quantification" purposes, but provided various insights that backend developers should know. I was able to resolve several shortcomings that I felt in other backend/resume-related lectures through this lecture. I will continue to take the remaining contents diligently and challenge myself to get a job!