To each their own...
I purchased the MCAT Visual Aid materials and they were very accurate and easy to use. I sat at home a few hours each day viewing the DVDs and following along with the Manual, and I scored a 28 on the MCAT and got into medical school.
this was the only way I studied for the majority of the MCAT, but i also used an extra Verbal Reasoning practice book to strengthen that area for me.
I would strongly recommend the product if you don't have money to take a Kaplan-like course, but still would like to sit at home and have the information spoken to you rather than having to read through books.
It was enjoyable, easy, and it got me into medical school, so i definitely cannot complain.
-Abraham Rodriguez
University of Illinois College of Medicine