Pros 1. I bought the course because I liked the fact that it covered content that is not covered well in other courses in a short period of time. 2. Good voice volume Things to improve 1. The video quality is 720p, but it is so bad that it looks blurry. 2. If the instructor guides students to do the practice together instead of just doing it alone, I think the students will understand the course better. 3. I wish the lecture materials were provided. 4. I think it would be easier to understand if you explain one thing in each lecture by showing a summarized text.