I thought the series started off really weak but finished strong over the last 3-4 episodes when the stakes got ramped up, the characters started to seem less like cardboard cutouts, Sabrina finally became likable, & there were actual consequences for both the story & the people in it.
At first I was just having fun playing Diversity Bingo. So, she's talking to her African-American friend about their LGBTQ friend & she casually mentions her Jewish friend's Bar Mitzvah & her Mexican friend's Quinceañera. So far so good. But where's the standard-issue gay best friend? Ah, it's her cousin who's a different race! Hmmm... we haven't had an interracial couple yet - there they are! Now, what race are the Weird sisters? All of them you say?!? Bingo!
I also thought Sabrina started off as too much of a Mary Sue. Perfect in every way, all the boys want to date her, all the girls are either her friend or jealous of her. All the adults respect her. She defies & outwits the Devil of all people (albeit with some help). She stands up to every authority figure, never faces any real consequences for it, & almost always gets the authority figure to back down. She's great at witchcraft, is apparently The Chosen One or something, & is never wrong about anything. Anyone who doubts her or dislikes her is shown to be wrong or evil (or both). Plus she complained all the time about people lying to her while lying to (even mind-wiping) her boyfriend & her best friends.
But then the last 3-4 episodes came along & all that started to change. She started to fail, to have "good" people disagree with her choices, to have her boyfriend complain that she lied to him (I don't think she ever did see the irony in that, though). She was the one getting manipulated, & I actually liked seeing her "go dark" a bit. The fake sacrifice with one of the Weird sisters was surprising, not because of the actual fake out plan, but that Sabrina would slit the girl's throat like that, even given the fake out plan.
I guess we needed to see her get there, but I found endgame Sabrina so much more interesting than perfect, milquetoast Sabrina from the beginning of the show. Plus the storylines really seemed to be going somewhere instead of existing just to check off boxes. I'm looking forward to a Season 2 now that she's signed the book.