The season was uneven to me. I still enjoyed it. I'm probably okay with it because I remember that early 80's Westworld TV show. It was some typical story of the week setup, but it was the two main characters, stopping the evil company scientist, who would replace the wealthy clients with hosts. Seeing how HBO is giving this three more seasons to wrap things up, this definitely feels like a middle chapter. It's clear that the end of season 2, the William we saw, is the host William at the end of this episode. Caleb is going to be recast to an older actor for the next three seasons, with Aaron Paul in flashbacks.