I just finished watch all three parts of this mini-series and have a few comments about the story itself and the film production.
First, I am sure glad I wasn't born during this period of American history. If this story wasn't as well documented historically I wouldn't believe "modern" Americans were capable of such butchery. The series captures the brutality of this clash between two mountain families but is perhaps well over the top when it comes to graphic violence (even though some of it was fact). It reminded me a lot of "The Untouchables" TV series of the late 50's where gang violence was shown in its gory detail repeatedly.
Second, as is the case with a lot of mini-series, it moves at a snail's pace with much of the story not essential to the telling of the tale. For instance, Rosanna's pregnancy, delivery and the baby's eventual death were slow moving and mostly fiction. Although she did get pregnant at Johnse's "hands" she contracted measles during the pregnancy and the baby was stillborn. All that fictional drama added virtually nothing to the actual story and took a long time telling it.
Third, until the very end of the last episode, nobody ages. This feud began in earnest in 1878 and lasted through 1891 - 13 years - yet every single character stayed the same throughout.
The series left me somewhat disgusted that people as portrayed in the series actually existed. The actions of these families were something out of Atilla the Hun, not any sort of American society. More than anything perhaps it shows how far we have come as a nation and culture and how much further we have to go to become truly "civilized".
The technical production was excellent - both photography and audio (with the exception that some of the third episode was out of sync video to audio but that may have been in the download I used). I'd give the production, acting, musical score and photography an 'A' but the subject matter a 'D'. Although a good history lesson in itself the violence and language rule out using it for educational purposes. Too bad.