I've caught at least half of the episodes so far, and all in all, I'm fairly impressed by the series. While the basic storyline loses a bit of its mystery as more is revealed, I think the overall production is pretty high quality. A few really good special effects and some good moments of suspense. The various directors have done a good job, and the episodes seem to string together rather seamlessly. My only thought is that the whole production might have been more effective if it were shorter; there's a certain amount of material that could be excised without losing much and would tighten the flow of the story.