I enjoyed having a structured study schedule for the testing materials. It helped me stay on track regardless of my procrastination nature. I did, however, complete the study materials a little different than the schedule gave. I initially bought the system and then immediately took the first test prep exam to see my control score of my current knowledge. As I progressed through the system, I would take the exam, review and than take the second exam after review, making note of the items that were continued to be missed in order to be able to understand my current knowledge of what needed further review. I completed all exams at the completion of the final exam 2 and felt that I was much more knowledgeable based on the way that I studied. I really enjoyed the material and knowing that I was not alone through this process of testing. I would recommend the TCD material to anyone studying for the BBS.