4.5 stars. Mainly because there are still parts of the books that utterly baffled me (like the last sentence in the book... what was that all about? I'm genuinely curious) and it took me a really long time to actually get hooked into the story, just over 100 pages.
After that it was actually a really fun read and the characters are all interesting to get to know- I loved the character dynamics, mainly those between Blue and her family and Gansey, Adam, Ronan and Noah.
Definitely recommend as a casual read when you have the time to just sit down with a book and a hot drink :)