I like to talk about these things long after they are fashionable.
I don't like to get caught up in the hype and forget to express my own thoughts on works.
I read The Host a few years back when Twilight was all the rage, and I found I enjoyed it more that the Twilight series, even though I am a vampire fan, and I did quite enjoy Twilight as a light read.
Synopsis: The aliens take over humans and control their bodies and minds. The few remaining humans who aren't hosts, are running for their lives. So when Melanie is caught, she thinks her life is over, after the alien enters her body, a strange thing happens. She refuses to leave, or be repressed or die, or whatever it is that happens to the person inside when their bodies become hosts. That's when the alien Wanderer and Melanie really start to get to know each other.
The Host reminded me a bit of The Animorph's Series (Scholastic) which my kids really got into when they were in high school. Their dad and I used to read them as well and we would book chat amongst ourselves.
This is how I would look as a Host...