"Balanced and factual" - could you expand on this point....like what is the author's background? Is he Roman Catholic? Protestant? Does he accept the findings of the council or is he an atheist?
For instance: Roman Civil Law as used on the continent during the Council (and today) is inquisitorial, the judge is assumed to be balanced and fair and he passes judgement after assessing the facts. Alone.
In English Common Law however no such assumptions are made - two sides put their cases - plaintiffs and defendants before a judge who decides nothing but enforces due process and fairness - and then a jury of 12 ordinary and random men and women then decides the facts of the case INCLUDING the law's validity itself. It is what marks out English History from other nations.
So in your review perhaps you could indicate what the author's standpoint is, don't be ashamed.