Dafne Keen is going places. She's phenomenal. This show... just... wow.
Cons:
I liked the way the daemons were integrated into this episode; they definitely got better about that as the season went on. But now I have to register a related, yet slightly different complaint...Pan is always in the same damn form. I mean, not always, but enough that it's distracting. I think in the book that was definitely his preferred form, but since it's a very important plot point that Lyra's daemon hasn't "settled" yet, I think some more variety would have been nice, just to emphasize that. Is this a nitpick? Yes.
Also... I missed Lee. A lot. I wish we could have seen more of him, although I understand why time constraints would limit his role towards the end of the season.
Pros:
While I'm not sure I'd ever recommend this show to someone on the basis of its effects/action sequences, I will admit that the final battle scene was pretty cool, with all the moving pieces of the bears, the Magesterium, etc. coming together in one bombastic final confrontation. Bodies are flying around, lights and noise and chaos... and Lyra, running through it all, just trying to get to Roger. I really felt the tension and urgency here.