Back in the day, there was a lot of griping about the unrealistic aspects of it. But it's quite the archetype of how colonization in Trek usually happens, and how it probably should, given the parameters. Instead of a team of disciplined astronauts planting the Earth flag for the queen and the country and then eating some apple pie, we have this group of adventurers who are distrustful of Earth and eventually end up considering the planet their mortal enemy, due to happenstance and a failure to communicate. And then unexpected things survive the mandatory apocalypse, and a strange culture emerges.
Might be all the unexpected here suffers from being so predictable: consistency with Trek traditions is not an exclusively good thing, I guess...
Apart from that, it's nice to have a solid location shoot, good props, and a plot that actually unfolds rather than just milling around. But I guess all the classic complaints about ENT pacing and acting could be made here. And I'm left missing a defining character moment from any of the main players.
Timo Saloniemi