I liked this a lot more than I thought I would. I'm a sucker for retro stuff and 50s and 60s Sitcoms are no exception. They were very meticulous in addressing and recreating the tropes of that era, even the somewhat subtle ones. Of course, they've made a few modifications in their anachronistic casting, but that's to be expected.
As the "How do we make something a comedy that isn't usually a comedy" efforts go in TV (Orville, Lower Decks), they did a pretty great job mixing the happy retro sitcom mood with the dark revelation stuff.
I feel like this is the kind of show that most "studio execs" are traditionally afraid to produce because it goes so far out of the box. I hope people accept it for what it is and give it a chance.
Will it hold up over the course of the entire series/season? Well, only two episodes in it's too early to know - but so far I really really like it.