Phenomenal stuff, obviously. Deeply moving storytelling.

Also the scariest the Cybermen will feasibly ever be. Of course, for a lot of Doctor Who fans that isn't enough, because they've built up such an intense gorefest in their head when they imagine their idealised "Cyberman body horror episode" that nothing will ever satisfy their bloodlust. The tragedy is that Cyberwoman is right there, but they get scared because you can see a woman's belly button in it.