The lecture content was not for beginners, and honestly, it was difficult to understand. I feel like I can't overcome the curse of knowledge by thinking, "Everyone knows this." Still, I feel like I learned a lot about blogs and SEO. However, I wish it was a little more informative. The conclusion is that you always have to be careful to completely filter out the dregs? But what's more regrettable is that the course period is one month, so if a similar course comes out again, I don't think I'll buy it. I wish there was no course period.