Interesting Premise, full of surprises I agree with reviewers critical of the abrupt and incomplete ending, but the production is still interesting. Cast and acting are fine.
Yes, it reminds me of PanAm, stuck in the 1960's. While interesting, I doubt even a small society would fail to progress and develop, though the rigid class structure, prostitution and birth regulation shown may be exactly such an unpleasant social development, utopia gone bad?
SPOILERS FOLLOW:
My initial opinion of the plot PRIOR to viewing was that the ship was an ark sent out on a 100 year mission not to another planet, but in a giant loop returning to earth, to ensure survival of mankind from an assumed inevitable circa 1963 nuclear war. Wrong.
During viewing, I considered that the ship might be some attempt to secret away the best and brightest of society in a space ship utopia. Wrong. Well, partly wrong.
The story line kept throwing curves, the ultimate being the actual scripted mission. OK, surprised. But, disappointed, not so good as could have been.
Science of a non-rotating one "G" ship is constant acceleration, half way out and then deceleration slowing down for the end half (i.e. ion drive, nuclear rocket...not bombs, and yes, these were designed in the 1950's). A very large ship would indeed have huge interior spaces, not bulkheads and padded walls like a navy ship or ISS. The high multi-story sets built were very impressive and realistic to such a type of giant ship. I definitely noticed how the "beach" starts off looking rather realistic, and large, but as the show progressed, smaller and more clearly, just painted seascapes on the walls of big round tanks, with access doors labeled "water reclamation". Despite an awkward plot, I believe production was well done.
A second season would have been useful. Story lines could have been tied up. A better ending could have been to have had the ship end up actually in space to everyone's surprise, expect the passengers.
I doubt another season or episode will be produced. But, if it were there are plenty of strings to tie and potential possible conclusions. Think of my first considered plot, a generational century ship "ark" returning to earth NOT ravaged by war? ..or maybe blown to bits? My second considered plot, a utopian space borne mankind actually finding a new world with the myriad problems of trying to terraform? ..or colonize? ..or invade? ..or Oh, well.