Just watched the 13 episodes of the series, and quite enjoyed it. I thought the very beginning was very unappealing and boring, but once the setting changed it became interesting. In particular episode 2 was great. The rest was OK, a bit disjointed, but it had some interesting portions. It would've been nice if the series was about 24 episodes long, as it is there wasn't much time to really identify with any one character, not much screen time to be had except for Ledo and Chamber.

In all it it was very much worth watching.

Will see about watching the two OVAs tonight.