Yeah, and I'm groovin' on it.
It's easily one of the best shows this season (and this is a good season for SF/mecha shows). It's back to the good formula of the growth of the heroine from her starting point, into something much greater. The show also slowly reveals the world of the 2020's, and the nature of the global takeover that precipitated the show's events.
Couple this with the fact that the mecha are secondary to the character interaction and development, and you've got a story that threatens to become a Joan of Arc -style epic.