I've had the flu this weekend and I also gobbled down all of the episodes. I accidentally missed Mrs. Kennedy and was delighted when I found an extra one after I watched Paterfamilias.
Watching the final episode, I found Claire Foy in this role mesmerizing. There is a recapper elsewhere who keeps bleating on about how this show doesn't tell us enough about the Queen, but I find the eloquence Foy gives in her every nuanced twitch far more gratifying than Margaret's blowsy exhibition (also true to life). It's so poignant -- this person, on her own, literally carrying the weight of the country, the family, the Church -- with no one to share it with. Her "if only" was so lonely.
I'm so sad that this is the end of Foy in this role. She is amazing.