I took his Build a Compiler in Python course, and I honestly found it to be lackluster.

He had just changed the format, though, and our class was his first of a new wave where he supplied us with no example code, instead making us write it all out by hand.

By the end of the five-day course, virtually no one had a working toy compiler of any kind. Maybe a parser and AST representation, but not the whole shebang.

His style of teaching is not as compelling as his live, on-stage presentations, in my opinion.

If I had paid with my own money, I would've been pissed. Caveat emptor.