This is the first book I read on this genre and... It was shitty.

The plot was lame. There was no explanation for anything, the end (if you can call that an ending) felt more and and end of a chapter meant to continue. 

I didn't like any of the characters and I hated the narrator. I don't know if it was purely the narrator's personality or if it was Stephen King's personality showing, but women were portrayed awfully. The whole first part felt like "I am a man, therefore I must protect my woman, who could not live nor think for herself". Women are hysteric and can't think for themselves apparently. 
He also gives a detailed description of every single woman, and the men are barely described. 
*This might be kind of a spoiler, but he's not even sure if his wife is dead or alive and he cheats on her... Like... Bro, it's been barely two days and you couldn't keep it in your pants?*
The narrator makes sexual references for random stuff so it was also uncomfortable. 
There's also a character who's last name is LaFleur and the narrator don't like him, so he thinks is funny to call him "the flower",  so... The narrator obviously has problems with everything relating to femininity, woman and masculinity. 

I swear I have never made so much notes in a book as I did with this one. It was really problematic and the story wasn't even good. 

I found it very interesting and it has a very nice and pleasant ending for a horror novel. I finished it in 2 days, it was a nice and informing brain twisting read! 

I honestly would’ve given this five stars but the random sex scene in the supermarket while they were under siege, where his kid was sleeping, and while the main character didn’t know if his wife was dead or alive threw me off so bad. Like it wasn’t even badly written is was just so fucking dumb.