Not too bad. Aiden and Josh are pretty good, although Josh doesn't hold a candle to George. So far, I don't care for Sally at all. Annie had a vunerable quality that Sally doesn't.
I hope that the fill-in nurse goes away. Nothing but annoying. Reminds me - in a bad way - of the Daisy character on Bones. I hope she isn't the Nina of the show.
Also - Artemis I agree with you about the Bishop character. Herrick was much more chilling.