I hate to say this but this was the book I disliked the most out of the trilogy. I made it 50% through before I was too bored with the characters and the 'plot'. And I hate to say that because I loved Lola (Anna not so much but it's whatever). Stephanie Perkins writing is cute and I love reading her books and mostly love her characters but Isla was just not good. 
 I couldn't finish it because I didn't want to finish it. The story was boring, the characters were boring, and I fell asleep. I give 2 stars for the author and the ending but that's it.