I hesitates between 4 and 5 stars, so I'll say 4.5 ;) 
 I really enjoyed this sweet little story, and it was so lovely to see the sisterly/family part of all. 
 Kitty has to be a favorite, even if I really liked Lara Jean too ;) 
 To me, she's a very lovable heroine, the supporting characters are well-fleshed and interesting, it's such a fun read that actually left me smiling like an idiot (still am, since I just finshed it 5 minutes ago) 
 Fluffly enough but not sweetsickening, some aspects totally predictable but that's also the charm of certain books. We read them because we enjoy the formula, when it's well done. And it was the case for me here.