The study group provided good accountability to make sure that I was keeping up to date with the material.  I had purchased study materials before, but coming to the group REALLY helped me stay on track and get it done.  I liked how people who has recently passed the test were able to emphasize what was important to study, and the fact that I could email the facilitators when I had questions or needed hints.  The exam was a lot of work, very challenging, but constant studying, reviewing, and memorization will get most people a pass!