A pretty decent read overall. Yes, there is some teen angst, and some teen everyone-is-zombies-and-I-hate-the-world, but the book also gives a very clear (and, it seems to me, accurate) depiction of both Andy's war-related PTSD and Hayley's anxiety attacks. I would have liked a little more of Finn's storyline - maybe a Hayley/Finn alternating chapter thing - but really the emphasis is on Hayley and her father and the heavy emotional and psychological issues they're dealing with.
I definitely think Karen would have liked this one. Not only for the big issues covered, but also just for the nerd love between Hayley and Finn. I wanted to wrap them up (with a big unzipped sleeping bag) and protect them from everything.