The book is a classic American sci-fi book, including small town mentality, a sports and US centric view, lots of government agencies, all working for the good of the citizens, keeping them all safe and ignorant and the warped morality that tells people they should destroy before they understand, just because they fear it.
That is something to be expected from an American author, though, and the book itself is not bad. It felt like it was inspired a lot by Stephen King's Dreamcatcher, which featured a similar personal dillema of alien infestation while the gov'ment was on the chase, but that one had more oompf. Of course, you can't compare aspiring Sigler to King, but then again, King's writing was never so great to me to begin with.
What I found really astounding is that a civilisation that uses biological machines to create a beach head on another planet would be so easily thwarted by a college athlete, a trigger happy black ops CIA agent and about a doctor and a half. Oh, and some Apache helicopters. What bothered me to no end is that I also felt this was a plausible scenario. I hope I am just stupidly influenced by similar literature, but would it really help to destroy the enemy before you get to at least understand it? What about the technology that was so easily recognisable as foreign and above Earth's current scientific level?
As a conclusion to both book and my own feelings: it was a nice read; not spectacular, but good enough to keep reading till the end. It is also available in podcast format and I myself have read it from a text file saved from a PDF that was gracefully provided free of charge by mr Sigler on the Escapepod podcast site.