Mine work somewhat okayish, which is within the margin of error I need them for. I think there was one that was terrible though.
Mostly I use them for the temperature aspect, mostly for reminding me if it’s too hot or cold in my room (because due to my autism, I often don’t notice whether I’m at a comfortable temperature). I have a few scattered about my room and basically they act as a visual prompt to consciously ask myself if I’m at a comfortable temperature, and to act as a rough backup to whatever I’m feeling (because even when I’m consciously aware that my temperature is feeling Bad, I can’t reliably tell whether I’m too hot or cold, so these terrible thermometers at least help me answer “should I get a blanket, or open a window?”
I agree that season 1 is far more engaging but imo, that’s mainly because the level of intrigue that I felt at the beginning of the story was insane — they were great at keeping that intrigue rolling in an interesting way. But that kind of mystery can only last so long, because it grows weaker as the audience learns more about the characters and world.
I think there was a part of me that felt disappointed by season 2 simply by the fact it couldn’t give me what I felt during season 1, and actually, I wouldn’t want that — the final episodes of a series shouldn’t have the same kind of tension of the beginning of the story.
Overall, I’d say that season 1 is excellent (in particular, there were some visually impressive and stylish sequenced that I loved) — Riveting" was the word OP used. Season 2 is also decent. I don’t recall it feeling rushed, and it does end decently.