It's a good lecture. I'm more than 80% satisfied. The 20% who aren't satisfied... The lecture speed is slow in easy parts and fast in difficult parts. I had to keep adjusting the lecture speed in the browser. I think the speaker unconsciously speeds up in complicated parts. And it's not a fun coding, but a nagging coding. Haha. No matter how good the advice is, it doesn't seem good to repeat it too much. Except for these two things. I'm satisfied with everything. It's a good lecture. I recommend it.