# Pros 1. A Lyra sample analysis lecture that you can't find anywhere else. (Irreplaceable) 2. Very detailed explanations. 3. Difficult but equally valuable lecture. # Cons 1. The video quality is poor, so the fonts aren't clear. 2. Instead of using a drawing board for explanations, it would have been better to have lecture materials (PPT). 3. There's no post-editing, so it feels like a live broadcast. At least some cut editing would have been nice. Overall: The lecture content is good, but I felt there was a lack of consideration for students in other aspects. If it were a cheap lecture, I would just watch it casually, but since it's an expensive lecture, it feels disappointing. Still, the lecture content is good. It's not a waste of money.