Joe, I have not read Uris.
Why do you think the book gives a balanced view?

I found this review which questions the objectivity.

"Social commentary, perhaps outright propaganda, is an integral element of this historical presentation. Each of the three factions in the political war is examined, but the native Irishmen obviously have thé sympathy of the author. Uris does manage to a great degree to avoid the depiction of the Irish as the quaint folk of the popular stereotype, but he cannot resist the image of an innocent and poetical people provoked to acts of violence by their greedy and unfeeling neighbors. "
http://www.enotes.com/topics/trinity