I'm mainly just going to put my vague musings after the 'read more' because you can't really discuss this show without it getting super spoilery, but the main "safe" thing I can say is that I really enjoyed the way it started but not so much what it became.
The whole initial angle of a group of people on a ship in 1899 when things start to get really weird and spooky is super intriguing in its own right, and unique too, both in its setting and the whole issue of all these languages mixing up leaving main characters sometimes unable to fully understand one another and emphasising the isolation of it all. And tbh when the screw-around about when or where the whole thing was actually started, it was still pretty engaging - reminded me a lot about Lost!
But the last two episodes and the ending twists basically invalidated 99% of the character development and stories of the series, left more open questions (and straight up plotholes or inconsistencies) than it definitely intended, and the final final reveal is just such a worn-out plot point in 2022 that I mentally sighed when it happened.
Why can't period pieces just be period pieces these days, why does everything have to have a sci-fi twist? It was novel once but now it's just a cliché in its own right.