I wasn't actually looking for a book for a Roman campaign, but rather a book that would help me build my own Empire in a game centered around an Imperial power-base.
The level of detail in the book is quite good regarding Rome, it's history and territories, the legions and everyday life generally. It also goes into detail regarding general campaign or session ideas based on the territories the players will be residing in as well as the time-period in which the players exist.
It also has a section on the roles of Core and Prestige classes as well as a new class: Gladiator.
[4 of 5 Stars!]