I watched his videos because I needed something to listen to while washing dishes, doing laundry, driving etc. and they're free. I only listened to the final videos in each section where he goes over a bunch of practice questions out loud. He reads a case, the answer choices, then explains the answer and why the other choices are wrong(my favorite part). I did that usually for the section I was currently studying or had just finished studying. Its a fun supplement especially if you're an auditory learner. I enjoyed hearing him read the questions and then shouting out the answers. It was also nice to hear someone reason through answer choices vs just reading them on UWORLD. I actually remember thinking of a couple of his questions/explanations during my exam. I don't know if it should be your main study resource by any means (didn't watch the teaching videos), but its nice to have a voice reinforcing information (again I'm very auditory). There were a few minor errors in the practice questions that didn't completely change the answer, but were just wrong. i.e. an ABG is presented that is improbable. I think if he worked on perfecting those questions and doing more of them… and just having an audio set where he goes over a bunch of practice questions he could have a great product on his hands. Obviously, I would most recommend using your actual study time to do UWORLD and repeating it if necessary… its currently the most bang for your buck time wise.