Both the online and in-person courses thoroughly prepare you for the certification exam and cover the same material.
With the self-study course, you can review the online course materials as many times as you like. The course also includes exercises and practice exams, and gives you up to one year to study for and take the certification exam.
Benefits of the in-person course include the ability to ask the instructor questions, plus enhanced learning and retention through group exercises and in-depth discussions. If you take the in-person training, you also receive access to the online course.