This is a vision of a first encounter. In that the show succeeds brilliantly. If one were only to watch the first episode then one could be quite satisfied. I was. It was foolish of me to want the second episode so soon afterward. The second episode starts meandering into the realms of predictable, that is, all is not what it seems. The third episode does not satisfy. The viewer is left wondering why all sorts of things are happening and it's a huge why all the way to the end. It needed science to back the fiction, to join the dots, and for me, as a lover of science fiction, it fell short.
I think it's an important compliment to the overall canon of science fiction shows out there, after all, it was originally quite a good book. The photography, editing, acting and so forth, including the effects, all are done extremely well. There is a love story as well but we never understand how that is relevant except in a very loose way if one compares the fate of the lovers to the fate of the world. Again, a huge why? In fact fate, as a theme, seems here to be very close to what others would see as plot holes. I understand the higher message the show is aiming for and it's OK as science fiction, but it was cruel to expand what is basically a poetic idea suitable for a paperback into over three hours of visual drama. Two hours with less irrelevant flashbacks and a brave stab at an evolutionary science explanation for that 'why' would have improved everything.
I'm not in agreement with those that say this show didn't follow the book and that is what is missing. I read the book at least forty years ago but it couldn't have been all that bright as I only remembered the initial theme, the arrival.
It's definitely not a rip off, but I think there are lessons here. It's not far off the mark and if the people behind this production move on to another science fiction theme then I certainly will want to see it .