Eh...nothing ground-breaking here. Typical high school romance, with some I'm-an-escaped-alien-experiment angst that's been done elsewhere and better in many mutant/superpowered comics. Other than superficial physical traits and psychic powers, our heroine is pretty much 100% human in thought and inclination...if she really is part alien, why not have some real ALIEN thought processes? But of course that doesn't happen. Anyway, as cliche as everything is, I want my junk as well as my vegetables, and this fit the bill pretty well until the very end, where a dramatic, important turning point in the plot hinged on something absolutely stupid and ridiculous. 
 (view spoiler)[I'm sorry, but an ultra-experienced wacko scientist with a stethescope should NOT be fooled into thinking a girl is dead just because she's holding her breath. (hide spoiler)] 
 Not a bad read otherwise, but nothing memorable. Read it when you have that need to indulge in shameless tween wangst.