So I liked the introduction for Zoe here, especially thanks to the setting, which feels creative, unique, and like a fun choice overall.  I also like how this is the first use of the "Doctor John Smith" alias for the Doctor, and there's some fun back and forth between the Doctor and Jaime thanks to scenes like that.

The rest of the serial feels like a real slog, though.  It's a boring and slow-moving story, while the Cybermen don't really feel effectively used at all.  It's too bad, as this feels like a story full of missed potential rather than one devoid of any value at all.