The Hatching felt like a cross between The Troop and Infected, but not as cool. The premise, the style and the characters felt artificial, like someone writing by numbers. Common phobias as main subject: check. Characters acting all human and relationshippy: check. Women in positions of power and important characters: check. OK, spiders don't work that way, biology doesn't work that way. If large arthropodes would be capable of coordinating in swarms, eating people, invading a human body and hatching in a matter of hours, they would do it already. There are numerous reasons why they don't, so in fact it was a simple choice: write a less alarming story that is even remotely possible or write something quick, algorithmically and that hopefully sells. Ezekiel Boone chose the latter.
It's not that it's a bad book. Far from it: the familiar writing style and pace made it really easy to read and get into the mood of it. Unfortunately the details were all wrong: the biology, the way everything happens at the same time without any reason to, the politically correct setup that was still sexist because from three lead women characters all of them were sleeping with an underling or thinking about it, plus the extra characters including some gay ones that had no role in the story at all. Now, I understand this is a trilogy or something and those characters will probably play a role later on, but as it stands, The Hatching is simply a bland average book that doesn't even provide closure. If you were caught by the story, you will need to wait until the next book in the series comes out. And for what? To hear about even more people who can't kill spiders or study them in any scientific way until providence saves them because they love their children. Oh, loving ones children as a reason to survive: check.
Bottom line: utterly average and strangely not scary for such a horrific subject.