A great episode, I loved the "job interview" setting of the story, I thought that was unique. Also, a new companion!

And the first appearance of Eighth's theme!

This was a fun enough story. Wasn't a fan of the premise to begin with, but as it was revealed that all the 'contestants' had ulterior motives and secrets (and the Doctor didn't advertise the position himself) it became more and more engaging. Not a great fan of Tamsin immediately but hopefully she'll grow on me. 7/10.