This series is worth seeing over and over again for it's outstanding acting performances from all the characters, the visually rich production (costumes, interiors and locations) and the intelligent and entertaining dialogues.
It is obvious that no cost was spared in producing this series. It is also obvious that great care was taken in casting all the roles - all the actors are serious professionals, making every person seem important (as they are) to the telling of the story. It's a pity this series didn't receive more media attention and awards.
The story line of the Borgias in this series is based primarily on the worst poisonous rumors about their lives, but understandable since it makes the story easier to tell, and in some ways, far more interesting. However, some of the outlandish scenarios that seem too ludicrous to be true did actually happen - but just did not involve the Borgias!*
The packaging was a disappointment. The season 1 and season 2 DVD sets consisted of 2 plastic boxes each containing 2 discs each, so that you wouldn't have to wrestle with all four discs (being layered on top of one another) at once, as is the case with this season 3 set.
It also would have benefitted from more information about who played which roles, as well as production credits.
*For a well researched and astonishing look at the real lives of the Borgias, try "The Borgias, The Hidden History", by G.J. Meyer, also purchased on this site. A riveting book that is hard to put down! The Borgias: The Hidden History