I started with absolutely no knowledge about networking, and I had to do a lot of additional research for each lecture. Since the content was very theoretical (though it inevitably has to be theoretical...), it felt like just reading definitions straight from a textbook, which made it difficult for someone like me who hoped to understand things easily and smoothly. No matter how many animations or diagrams were provided, understanding the content wasn't easy. Of course, I did complete the entire course, but I think it would be an even better lecture if improvements were considered such as using a richer, more engaging voice tone, organizing the lecture content so it's not all over the place, and providing easier examples. However, the good point was that it wasn't bad at all for a beginner. Should I say it was mild? It's certain that it was approachable without being too difficult. Also, since the content is quite abstract, I invested a lot of time studying additionally to understand even one more sentence following the flow by referencing the lectures, and in the end, it definitely sticks in my head lol. As expected, studying only sticks when you do it yourself..