I agree with some here. I found it very useful. I was very busy and thus has little/no time to study for the MCAT until the final week before (which I took off both my jobs). As such, the only studying I did was listen to AO over and over while walking to work, on the subway and driving sometimes. Yes, the jokes are very corny, but I actually find that they helped me not get so bored that I zone out.