All ten episodes have been a kind of tightrope walk, threatening any time to fall into the dumb conventions of the original series. And they've managed to mostly avoid being campy or using lazy plotting. The writers have taken care to put a ticking clock and ratchet the tension and keep the twists coming; the characters are complicated enough to have real motivations and be believable. ESPECIALLY DOCTOR SMITH. The the family in the original series would sensibly have thrown that guy off the ship by episode three for their own survival. Here they are at least smart enough to know she's very, very dangerous and to keep her in check.
By the way, special kudos to Parker Posey who manages to make Smith funny and terrifying at the same time. And to her credit, more terrifying than funny.
My only complaint with this compulsively watchable 10 hours of TV is the score is a little intrusive now and then, and they might have been a little too ruthless with those ticking clocks and twists. Now and then maybe those poor humans could catch a break maybe? And also, the technology (and brand names!) seem a little out of place; this is a future with interstellar travel, maybe by then Oreo would have updated their logos or packaging or something?
You could say the whole thing is unnecessary, and instead of rebooting an embarrassing old TV show just come up with a similar new one. I say, let's make things right. Looking forward to the next season.