Exmoor doesn't look like Wessex
I know Hardy's Wessex (the countryside, that is) quite well. I thought the scenery looked a bit too rugged for Wessex, and see that the film was made on Exmoor (which I've been over a few times). I thought I recognised the actual "Doone Waterfall" in the opening scenes, and don't think there's anything like that in Wessex. (Ironically the Doone Waterfall has been depicted in a much-exaggerated way in screen adaptations of "Lorna Doone".) But then most Wessex scenery is "pleasant", and the more spectacular parts are perhaps too close to the "madding crowd" (ie the public) for filming.
Still,it wasn't as bad as the Isle of Man standing in for Dartmooor and Torquay, as it did in a couple of films (including "The Hound of the Baskervilles") three or four years ago.
By the way, I thought the acting was good.