Definitely worth it!
I signed up for the class about a week prior to starting the class. Was not able to do much before class started but dedicated my time after class, in the evenings to studying. By the end of the week, I had completed about 60% of the quizzes provided. I completed the remaining quizzes and practice test over the next five day. Exactly a week after completing the class I passed the exam with no problem. Scored very well. I owe it all to Aileen's instructions, she prepares you for the test and doesn't waste your time.