Yes, it was 100% worth it for me. If you're super committed and have good self discipline, I think you could do well without paying for a course. However, the course forces you to stay on top of your studies and has a money back guarantee. I ultimately ended up choosing the course because I didn't want to have to write it twice if I did poorly the first time (its over $500 each time you write it). I was originally planning on studying by myself with the kaplan books, but the course itself was SO helpful with hints, tips and tricks for success. My advice is to do the self paced online (cheapest option) and wait for a discount code to become available. I saved $200 with the coupon I believe. I think that the online practice tests are the absolute best way to prepare for the real thing, and Kaplan's practice test format is identical to the real one. Also, Kaplan's questions are usually harder than the real OAT's, so you'll be extra prepared for the real test. (for reference did the course over 3 months while I was working part time, and I scored 370AA/380TS)