Cannot speak for Reg – but the Audit ninja notes increased my score 19 points (see stamp below), after failing the exam 2 times. I would imagine the Reg ones would help as well.
For me, the audit notes were a great review of the exam material a few days before the exam. I would crank through Becker and then move to the audit ninja notes to make sure I had a good grasp on all topics. They really help you to determine your “weak” areas, so you can go back to your review and crank through those specific areas.