4.5 stars. 
 I first read this book like, two years ago on holiday and it was so cute and fun and easy to read, so I decided to reread the series over this summer! The characters are cute and fun, I love how relatable Katy is, her friendship with Dee (gotta love a good female friendship) and her relationship with Daemon. Daemon is like, one of the bad guys in all the other YA books but he isn't an asshole who ignores consent and stuff, which I appreciate. He's the guy you love to hate, but you also love to love him, too. 
 I love the plot of this, it's easy to follow but fun and exciting and action-packed. It's not the best piece of fiction I've ever read with super well developed characters and a complex world, but it's a really darn good book that I couldn't put down, and I love the little cheesy parts that just made me smile. I can't wait to continue on with this series, and just binge it for some light-hearted alien fun.