On the surface, this seems like a fairly cliched story of a girl sent back in time to help her mom win homecoming queen. But really, this story is about Korean American identity, and the different ways Sam and her mom approach how they're perceived based on their upbringing.

Although there's a little bit of romance in this story that I rooted for, this focuses strongly on family relationships, and it was really interesting seeing Sam's mom Priscilla as a teenager compared to how she is as an adult. She's very carefully controlled, and Sam's relentless optimism really balances that out and makes for a great friendship.

The plot twist later on got me, I wasn't expecting it but it really strengthened the story and made earlier events make more sense. Although I felt Sam's story was wrapped up at the end of the book, the mysterious, magical ride share company was so interesting and I'd love to see a sequel featuring new characters.