There's an interesting (and not too long) article about the beginnings of this show on ANN. Worth a read if you have a couple of minutes of time.

One of the best shows this season, no doubt, and no wonder with this script writer. At first I was taken aback by the sudden appearance of the cute, green officer girl after the foreboding atmosphere and the manly beginning, but I soon found her interesting and funny instead of detrimental to the story. In fact having her there with her naive fresh out of the academy notions contrasts nicely with the inhumane nature of the society.

It's one more Hanazawa Kana voiced role, but I'm happy with the voice actors. The production values seemed also jolly good in general.