The cast is good. I have not had much use for Ryan Gosling, but he is very good as the new generation replicant who is tracking down the few surviving older replicants; however, Harrison Ford steals the show once the two protagonists collide.
The photography and set design are essential ingredients of the story. The dystopia of the 1982 version has collapsed into something far more bleak. One scene in an orphanage makes Dickens’s “Oliver Twist” seem Edenic. I use that term deliberately since there is more than a whiff of Genesis or “Paradise Lost” in the dialogue.
I saw the 3-D version; I suspect some of the sets will lose their visual impact in a 2-D version. Even so, it is worth seeing regardless of the format.