I am reading this book now. He is very right in a lot of what he shares, with the exception of one historical fact. He may not know that the true church did indeed surface once since the Apostles. The name the world gave the church was "The Quakers" - a term of hatred and derision. Those Christ appointed men were faithful to Christ in every way and overcame sin and it's dominion in them, to serve Christ as he led them. They left much published (in obedience to Christ's explicit command) that are very edifying to those who seek to leave all and "go on" in the Lord. Their works are all free of copyright and in the public domain. A search through Archive.org will manifest much the Quakers wrote that will bring joy to the hungry heart.
This book follows much that was revealed to the early Quakers and is truth.