As intriguing as the first 25 episodes of Dollhouse were (not including the original pilot), the series would be nothing without this finale. Epitaph 2 is to Dollhouse what Serenity is to Firefly; it ties up loose ends, prevents future apocalypses, and gives fans, at least this one, the assurance that our beloved characters are going to have as close to a happy ending as they can in their post-apocalyptic Earth. Of course, losing Ballard and Topher, like losing Shepard and Wash, wasn't easy; their deaths made me wish that I had no emotions like the dolls/dumbshows this series features. But after our tears fall and the heroes manage to restore things (again), we can appreciate that sacrifices must be made for the cause, and the ending is all the happier because Topher and Ballard made it possible.
Kudos to the writers for having Alan Tudyk and Summer Glau reprise their roles as Alpha and Bennett, respectively. The episode would have been perfect with a glimpse (or fleeting mention) of Ivy and Whiskey. But, for the most part, this episode is a well-executed end to a sci-fi series that made us laugh, yell, wail, and contemplate the implications of technology.