It took at least the first episode for me to be drawn in, but by the end I was hooked. The quality of each and every acting performance (in particular the charismatic and compelling Jack Lowden, Dominic Cooper, Emun Elliot, Sean Harris (I'll watch him in everything) and Charlotte Spencer) just drew me in. What a difference it makes to the viewer to enjoy an intelligent script with exquisite performances pretty much every minute in each episode. I ended up staying hooked all the way to the end until 6am and I can't recall doing that for years. How the actors must have enjoyed this series. I honestly don't care how accurate it is historically, because this is drama, it's conflict, and it's powerful stuff with provocative dialogue that makes you think. What a tour de force.
