Dude is amazing. I don't know how he does it, but God (or whatever deity, higher power, Greek Gods you believe in) has given this man the ability to break down any concept into understandable terms. If there was a prophet of science, this man would be it. Not only is he effective in illuminating the concept, he relates it to other related concepts and gives you that AHA moment. I hadn't been in school for 10 years, hadn't taken Biochem, or Org II, and I watched Chad's videos for the MCAT. Scored in the 90% percentile based on what I learned. Why? Because he doesn't waste your time on things that won't be tested. Obviously, you have some work to do as a student b/c just watching his videos won't make you a superstar, but he does makes it easier to grasp. I'm also one of those people who don't spend money on the web, but this is seriously the best investment. Invest $200 (or whatever it costs) now, so that you don't have to waste a year retaking a class, an MCAT, or whatever else "opportunity cost" will hit you if you don't do it right the first time. Your investment will be worth it, and you won't regret it. I recommend him to everyone I know. I just hope there is a "Chad" for med school because it's about to get real in August.