I believe this is a substantial and high-quality lecture because it provides materials such as examples and samples that are easy to follow, and the instructor explains everything calmly while checking each point. However, I wish the script were more refined so that viewers could understand it as clearly as they would on public media like TV. While the structure is good, it feels cluttered due to accidental clicks, selecting the wrong screens, or fumbling to find folders and files. In particular, the frequent switching between Korean and English or the excessive number of typos is very frustrating (this has been a recurring issue since the first lecture). These moments are when my trust in the instructor wavers the most. The typo issue is a problem that absolutely must be corrected. I hope you don't find my review overstepping; please just take it as a reference.

I remember going to take the exam after rushing through the problem-solving sections because I listened intently to the beginning but barely heard the latter half. Fortunately, I passed the sections I missed, and my scores for the earlier parts were well above the passing line, so I passed the exam. Overall, there are many areas where the content doesn't go into great depth, but considering that a deep dive into this field requires a massive amount of time, I think that's unavoidable. As a course for obtaining a certification, it was great for achieving the goal of passing the Big Data Analysis Certification (ADsP) written exam in a short time, as it concisely highlights only the important points and provides examples and theoretical reminders to aid understanding.

I hope the lecture becomes a bit more in-depth.

I started this because I wanted to build a solid foundation in Figma from the ground up, and since you explained everything in such detail—almost as if you were saying, "Now, this is a mouse"—I've learned so much more than I ever did when I was just trying to figure it out on my own. It's on a completely different level😀 Thank you✨