Pretty good futuristic, apocalyptic story with scify undertones. There's also a bit of romance to complement the young adults that are part of this story.
I liked it, and wouldn't mind re-visting Paradise again. I want more growing up for our young heroes. I want more world building, especially the human-symbiotic connection and developing evolution, and last, but not least, more romance.
I want...yeah, that was a hint that I'd really like a sequel for this story.