Sarah is an absolute delight. She's feisty, strong willed, eager to learn and question, and she even took action against the Doctor when she thought he was the enemy! Brilliant! I really can't wait to see more of her and I know already that I'm going to love watching her stories.
Linx is an awesome villain. He's surprisingly quite a nice guy! He's not as ruthless and ill tempered as your normal enemy, but he puts his foot down and affirms his dominance without hesitation when he must. He's pretty good to his human
slaves colleagues - he speaks to them nicely and feeds them! Then again, it's only because he wants something out of it and he'll do what is necessary to get it. He may appear to be less harsh than others but he's still a menace.
All in all, a fun story that has made me feel pretty happy; Sarah just gives me a warm feeling, and Linx is a top lad.
4/5.