Is Charles Chiniquy's
"Fifty Years in the Church of Rome" a valid source of anti-Catholic information?

We got an email that said:

"PLEASE read 50 Years in the Church of Rome by Charles Chiniquy. It will open your eyes!"

Charles Chiniquy was a Priest who was excommunicated in 1855 and spent his lifetime trying to take swats at Catholicism including accusing the Church of murdering of Abraham Lincoln. In 1885, he wrote a book titled Fifty Years in the Church of Rome to advance his charges and theories. A short bit of research reveals quite a lot of interesting information about Charles Chiniquy.

Apparently, the Catholic Church was not the only Christian organization to have a problem with Chinquy. After he was excommunicated from the Catholic Church and became a Presbyterian, he was expelled from Protestant assemblies due to embezzlement and the "misappropriation of money he collected on false pretenses in Europe on behalf of a non-existent Protestant charity". The following essay points out contradictions in Chiniquy's testimony and calls into question his trustworthiness:

Pastor Chiniquy: An Examination of his "Fifty Years in the Church of Rome" by Rev. Sydney F. Smith, S.J. (available here)

This will help put the Charles Chiniquy story in perspective.

Lord Jesus, let Your prayer of unity for Christians
become a reality, in Your way.
We have absolute confidence
that you can bring your people together,
we give you absolute permission to move.