Set aside the formulaic style of story telling and the predictable chain set of characters (Silas/Hassassin, Teabing/Camerlegno) , its definitely a culmination of Brown's two precedent novels, DVC beginning and A&D middle (I cant still identify the ending obviously) but its so far so good!
Just the prologue is worth every single penny spent on it
Brown has definitely took us to another occult experience!