Learned a ton from your book, I wish I started using it earlier on. The way you present things just clicks!

All I wanted to do was pass my boards. I studied two question banks, Crack the Core, Board Buster videos and prayed for two months (prayers are ongoing). I didn't just pass, I did well and scored 560 (350 is passing). The Board Buster lectures were good and I would have watched them more but I had to turn them off around my wife and kids because of Lionheart's cursing.

Passed the boards using only your Crack the Core book and videos to study.

The material tested by the core exam is immense and intimidating. The board review course and the Crack the Core Exam books provided a focused, high-yield method to approach studying for such a seemingly overwhelming exam. I listened to the entire board review course about 4-5 times and read through the review books twice. I also read through the dedicated physics review book, The War Machine, and the case companion books. I am confident that this helped me feel prepared for the core exam, dominate each section and pass the exam with a score well above the passing cut-offs.

Prometheus provided a refreshing synthesis of the board contents and conveyed them in a succinct, clear, and occasionally comical fashion.