<p>IAS199 - here is my opinion. If you have enough fortitude to sit down and take practice tests, analyze the questions you got wrong, and then focus your efforts on improving on those types of questions, you will do well with the books. If you cant focus to study by yourself, at least taking a class will make you focus on the SATs for the hour or so a week you are in the SAT prep classroom. I don’t think there is any magic that is taught in the class that you cant find in the “How to study” sections of the 5 books you have already. Just my opinion, I cant afford $500 for a class, and if you can’t study for a test, how will you be able to do it in college for mid terms and finals?</p>