Finished Escape at Dannemora (yes, we're kinda slow). All four principal actors gave fantastic performances (Patricia Arquette, Paul Dano, Benicio Del Toro and David Morse), the story was compelling, and Ben Stiller's direction was solid and cinematic.
Arquette deserves whatever awards she wins (and has already won).
I see the necessity for the penultimate episode ("if you were rooting for these guys, here's why you shouldn't") and I understand the reason for inserting where they did, but it did disrupt the flow of the story.