Started the series tonight. After this post, spoilers, so don't read on if you don't want to be spoiled.
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Episode 1, "End. Begin. All the Same."
First impression was really bad. I didn't like the introduction at all. I would have much preferred if the epsiode had started afterwards. Everything in it would have been much better presented during the events of the episode itself, instead of a bombastic infodump.
After that, it got a bit better. I really like the idea that the Gelflings trust the Skesis. We get to see them interact with characters we know are going to go bad. It does make me wonder how the series is going to end. We know that the Gelflings are almost all wiped out, but that doesn't mean it has to happen during or at the end of the prequel time frame.
I think a little less would have been more. A lot of the camera work zooming all over the place was disorienting. It was nice to see a lot of the vistas, when well shot. GCI post effects were gratuitous and over wrought.
Man, I could not tell you the names of each of the Gelfling characters. There's the scholar/princess, the underground girl, and the son of the castle guard. Not much to tell about them, they weren't nearly as interesting as the Skesis, who are fun and colorful characters. Still, we've got a few episodes to go, hopefully the protagonists will get some development as events progress.
So, I'll give it a C. Rough patches, good stuff, bad stuff, but worth continuing to watch for now.