... Well, that was pretty damn awesome.
I don't think we've ever had such a slow burner as a finale episode 1 before, but if worked perfectly. Missy was great, Seb was hilarious, that scene at the volcano (hello Mt. Doom!)... everything just came together to a perfect episode that was so much creepier than 95% of everything that Who has ever done.
Though I am, at the same time, quite disappointed by the fact that the BBC revealed that there would be Cybermen in this finale - that would have been such an amazing reveal that was cheapened because it was basically obvious the moment the Dark Water and its refractory properties were explained.
Still, on the whole, this was AMAZING. Easily my favourite of the season, and considering the season's strength, that's not something that I'm saying lightly.