I found Mr. Hinson's book very difficult reading as it most vividly describes the monstrous abyss of tyrannical Armstrongism and how it quite literally destroys people.
The author himself tragically lost his own son to Herbert W. Armstrong's anti-medicine superstition. (An idea Herbert W. Armstrong stole from the 1921-1952 Jehovah's Witnesses.)
The book is to a large extent a collection of letters, personal testimonies, and recollections made by WCG ministers and members crying out for reform within HWA's WCG, pointing out the many terrible shortcomings within WCG (largely due the authoritarian manner in which HWA lorded over it) and how they were cast out of the vicious cult as HWA and his cronies proceeded to destroy any attempt at reform to secure their power over the eternally abused flock.
It provides an important account from the those who strived to correct injustices within WCG before the mass defections of 1974. It certainly is well worth reading.