“

The accommodation she (Ashildr) and the Doctor come to at the end though is genuinely intriguing, and ripe for future appearances and fiction. If Torchwood exists to protect the Earth while the Doctor’s away in time and space, it feels like what’s created at the end of this episode is the equivalent of Torchwood’s Peace Corps, and the reveal at the very end of the episode suggests the hastening of the end of Clara’s time with the Doctor, whatever she herself may have to say about it.”  – ( x )

Honestly, I like this guy’s reviews and he has been pretty spot on. This is a Clara-lite ep (she was filming Me Before You during this). I also don’t believe we have seen the last of Ashildr this series.