From the perspective of a typical marketer dealing with "creative," the level of this course is still set too high. It often feels like several different lectures were patched together, causing the flow to break frequently. While it is sufficient for understanding basic concepts, it is quite disappointing considering it is a paid course, albeit a small fee. In particular, showing examples through DebugView seems likely to cause a lot of confusion. I hope the instructor realizes that things that are second nature to them as a developer are not familiar at all to "typical marketing professionals" who are taking this course to start handling GA4 in the field. The quizzes are also very disappointing, as they are typical Korean-style multiple-choice questions designed for ranking. It was frustrating because there were several quizzes that felt like "guess the translated Korean term," which wouldn't be very useful in practice. Honestly, I am very disappointed.