This is not actually a children's book, of course, but it's written in that style so I put it on that shelf. The illustrations are perfect for a children's book. Adorable little animals and lots of toddlers of various ethnicity.
As for the text, I found it amusing. I don't have any kids but I can imagine the frustration of trying to get a kid to go to sleep. I've always been a night owl so I'm quite sure I was a total pain to get to sleep at night. The tricks the kid employees seem very realistic.
I don't think the author is an awful parent. I'm sure writing this was cathartic and just because he wrote it doesn't mean he'd actually express any of it to his kid.