First , I do have to agree with reviewers who noted anachronisms of language and highly unlikely behaviours - Georgiana falling to her knees crying in front of male servants in the public rooms being one of the most obvious. I do not believe for a moment in the central premise that Darcy and family would be cast into Outer Darkness socially because his brother-in-law was a criminal. Gossiped about undoubtedly, but bad apples among the aristocracy are hardly uncommon now or then.
I feel also critical of the costuming and general appearance of Elizabeth , it become clear at the end as to why she might have looked tired but why she should be so badly dressed is beyond me . One coat-like garment resembles nothing so much as a hessian bag and she appears to only wear two plain dresses for weeks on end. Georgiana seems to have only one - though it is a nicer one . And Elizabeth's hair seem so be permanently dishevelled for no good reason. While I'm carping , I also have to say I don't understand why there appears to be almost no upper servants in the vast edifice of Pemberley. Such an establishment would have a steward and/or butler, several footmen and under-footmen and Mrs Reynolds would have many maids under her . Ah well, no matter really I guess.
On the plus side, I thought all the acting was great , especially the female cast. Lydia was beautifully cast and played, as was Lady Catherine and Mrs Bennett . I wish they could have had bigger roles in fact . So, in spite of the above mentioned criticisms, I have to say it was a very watchable period drama and , actually, much more fun than the the book . I like PD James very much , but this was NOT her best work and frankly rather a tedious dry read .