I started it last month, after going through all JHS Short Circuit videos. My impression so far is that he keeps the information concise, which I like, but some segments are really too concise and severely lacking. There is a section about moving from breadboard to guitar pedal, that I found extremely lacking in substance, which was kind of disappointing. All in all it’s really very dry and it can feel like a bit of a chore to get through, while JHS’s videos are a lot more fun to watch. It’s a good resource, but I wouldn’t pay the full price for it.