Show it's really slow and the protagonist is really dull, kind of that guy who doesn't excel at anything but even so wants to stay in its comfort zone, however...
I think I'm gonna understand it better when I am older-
I get that the point is to encourage reflection about what would you do if you had a date to die so I got really intrigued. However, (maybe because you'd have to be older to fully grasp the meaning as the majority of characters are senior citizens) past half the season I didn't see the story going nowhere, nor direct any attention towards explaining anything about the supposed planet that's gonna crash.
I'm pretty sure the focal audience are 40~50+ year olds who are looking for meaning in a stage of their lives where its easier to follow the inertia of their recent 10 or so years. I would say it's a really good work at tackling life after your prime, after their kids already grew up, and/or at a solitary part of life where questions about fulfillment and regrets of unaccomplished achievements arise on a daily basis.
It feels bad to say it, but I felt really bored past episode 5 as I thought 'Ain't there anything more about the story? Is this sad woman's work life and little day-to-day achievements the only subjects to talk about? No one's even gonna talk about how an imminent death deadline would affect kids, teenagers, young adults or families? I felt like (in a broader sense, like about if this were a series with the same premise of imminent world destruction but in a way more appealing to a wider demographic) this show had so much wasted potential. I was bored stupid by the tedious 9th episode as I expected at least some emotional connection (kinda like the episode of the father and son) towards the end but it didn't there nor in the last (which I don't even remember what it was about). Honestly I felt like its a good work I'm not mature enough to understand, but it could've been better to my licking as (thanks to that expectation) that's why I sticked to the end and I regret it.