I had a buddy that took the GA Tech course and he let me use his binder/materials. It was useful in prepping more so than utilizing for exam day answers. I also used Graffeo (IIRC, several questions seemed to be verbatim from that book, at least enough to make inferences anyway), both NEC and NESC codes, practice test and 3-4 of my college texts.I thought it was mostly fair. There were a few that tripped me up, but I will say the School of PE class really helped me and the notes were my Bible for the exam. Without those, I would have been doing a whole lot more digging than I had to do.
This wait could almost rival being neutered....