I only made it 2/3 the way through the first book, trying to like it to justify buying the hardback series (because the covers and spines are so pretty). But Lara Jean reads like a 14 year-old (max), because she's so defencive and snappy to everyone outside her family and such a doormat to family members. Much of her dialogue ends in exclamation marks, and she runs here and there at school. Even the "hero" has exclamation marks for his dialogue and also says "dummy," which makes him childish, as well.
Lara Jean's phone rings, and she says hello. "What are you doing?" he asks (I got excited -- he sounded cool and blase yet interested in her). "Who is this?" she asks. "Peter!" All coolness gone.
The summary on the jacket and online is not true at all. Her love life does not go from zero to out of control. I thought she'd be going on dates with at least four of the five guys who got letters, but it's all just about pretend dating ONE guy so that one other guy doesn't think she still feels the way she said she did in her letter to him. Her "dating life" is FAR from out of control. The guy she wanted to convince is convinced very quickly, so why does she keep pretend dating the other guy, who she snaps at all the time, like she's a little kid? She's NOT cute, she's annoying. She never has any good dialogue to contribute to any conversation, either. When she's hanging out with Peter and his friends, she says nothing and makes no effort, but like a true Mary Sue, they pay her loads of attention and even pick her up and start running around with her, because she's so "little" ... and thus irresistible? I started hating her then.
The stakes and hard motivations of Lara Jean were minimal that I'd put the book down and forget about it for days. And who sent the letters??? She doesn't even care who or how. She doesn't have any plans. She doesn't even have any friends. Who does she have lunch with, when her one [horrible!] friend is away most of the week? She's such an erratic loner, I couldn't fathom why she'd get the lead in the story, let alone get a part on a Netflix series. I BET she's nothing like Lara Jean in the books! I bet she's a lot less childish.