This entire book sounds like somebody watched Stargate SG-1 and totally missed the point that the Goa'uld are intended to be the BAD guys, not a sparkly perfect species who are totally awesome in every way except for the slight moral failing of being parasitical... which isn't a big deal or anything.
I'll admit, a book from the perspective of a body-snatching alien is potentially interesting. Kind of like a sci-fi Grendel. But... it would require an author who actually has some talent. Instead, it's coming from a woman who thinks rich white people are automatically blameless, and pretty = good.
Oh, and the human Sue's name is "Melanie Stryker." Not at all similar in structure, rhythm and sound to "Stephenie Meyer," is it?