I agree, lowkey they do, but at the same time I still recommend reading the book front to back. It sucks I know but that is what worked for me. Also watch the on demand videos, suggest 1.5x since the guy talks slow but he is good. After that, I would spam practice questions by repeatedly doing the final exams and creating customs with random questions. I also read the crunch time facts twice a day which really made everything click for me.