Yes, she's amazing! And I love how, whenever she encounters something she doesn't understand because it's foreign to her culture, she puts it in terms that she can understand and usually grasps the essence quite easily. And I love her awesome defiance and attitude of "nobody messes with me or with the Doctor, dammit!"

I'm probably not managing to see more than isolated stories of the Key to Time arc now, because the schedules don't go well together with my time zone and a day job. But that'll at least be one clear set of stories too buy myself later. :-)