Actually I loved season 5 of The Crown. I'm re-watching it with more focus. I have to look past the annoying qualities of former Prince Charles, to see how brilliantly Dominic West portrayed him. Charles was often dismissed by the crown when he had decent ideas, and perhaps it's no coincidence that he tended to get carried away and be subversive, among other things. The actor already has quite an impressive resumé, but now, among the great cast of season 5, I think he set the bar highest.
That said, knowing what's coming for Diana is just so sad to me, and it makes it more stressful to watch.