I have to admit, I don't really get the love for this one. It's a really solid episode, delightfully creepy with great atmosphere and set design, but that's pretty much where my praise for it ends.

The Lone Cyberman was hyped up quite a bit, but I don't really get his deal. If I remember later episodes correctly, he isn't even properly utilised in them. A Cyberman without an emotional inhibitor is an interesting idea, but I don't think it's done well here.

I feel like, for being the most famous person in the episode, Mary Shelley was sidelined quite a bit. Everyone knows Frankenstein, but I don't think I've ever heard of any of Mr. Shelley's writing. I think the guardian thing would have worked better if it was Mary who was holding the Cyberium, instead, but for all I know they were drawing from real life for the way it effected him.

It was also just a bit slow. A lot of it was building up the tension, sure, but it was a bit too much for my taste.

I do love Thirteen in this episode. She has a few fantastically odd moments, as well as some great speeches, but that's not really unusual.