Before TDC I knew barely anything about the content of this exam. After I went through all the study content I felt pretty confident, and was wondering how the actual test would be. The actual test was pretty much exactly like the mock tests I had completed and there was nothing that wasn't covered on the exam! I am so impressed with TDC and how straight forward everything was. I honestly didn't break my back studying for this; TDC made it easy. I passed my exam, and TDC was well worth the money! Thanks so much!!