Honestly the premise is enough that if the show was even moderately well-executed it could have been binge-able, and if it was masterfully done it would have been an incredibly unique/memorable entry in the Netflix Anime Pantheon. Unfortunately what we get is a bunch of garbage stitched together by limp motives and cardboard cutout characters, which at times reads both completely unbelievable and completely pedestrian.
The characters motivations could stand to be fleshed out with some subtlety, rather than painting them into a box as "this character is like this, and they were literally selected for this group because of that flaw." You don't need to explicitly state this kind of shit.
One of the worst problems about it all is just how unimaginable some of the forced drama is. Like really, there are 30 people left on the planet and two of them happen to be people who were deeply in love and separated before the apocalyptic event. Them not knowing the other made it but for some reason holding out hope that they did (retarded hope by the way) is highlighted as like the focal under-arching drama element. Thousands of years have passed and they only picked 4 groups of seven of you to survive after it. It's fucking INSANE to just "hold out hope" that your stupid girlfriend is among them.
The biggest issue though is that the scenes that are supposed to resonate emotionally feel like such contrived garbage. They don't feel earned or genuine at all. At one point, the closest thing to a self-insert character in a typical anime RUNS OFF CRYING in a tantrum in the woods, and it just reads like "Character runs off crying, exit stage left. Other character follows and gives lukewarm peptalk which resonates, end scene."
There isn't a single character that I was rooting for in this steaming pile of garbage. None of them are believable even down to their individual actions, let alone as a cohesive PERSONALITY/IDENTITY. The action is insanely stupid and forced to feel out their shitty backstories (there is a couple that literally hunts animals by pitching and hitting rocks with a stick because they were HS baseball stars before the apocalyptic meteor. I shit you not, this happens and is the focus of an episode.
Watch it to see how garbage it is, if you have a brain or any anime experience I can guarantee you will hate it. Complete waste of a very promising premise, could have been jam-packed with tension and genuine character growth instead of this manufactured, color-by-numbers tripe.