Harry Potter and the smack upside the head

I know I keep mentioning that I'm over a decade late to the party, but I finally tore through the entire Harry Potter series - it's awfully helpful if you have a bunch of semi-busy ER shifts all together, nearby a friend's farm who happens to own the whole series. So ripped right through them, even Order of the Phoenix, as honestly folks, it's a children's series. Not too hard to read.
So? Was I scandalized (as was the evangelical church was) with the sorcery and witchcraft, worried that children all over the place would get the Imperius curse upon them, and follow the dark lord? Did I think it was the best cultural phenomenon of this century?
Um, no and no. To be honest, I found the writing poorly done; as one critic put it, "There is no adverb that JK Rowling doesn't like." The quality of the writing headed further downhill the further into the series one went. That's understandable; there was an enormous amount of pressure to keep pounding out those tomes as quickly as possible.
In addition, Harry's annoying. Yes, I know he's an adolescent, and certainly he acts like one. Yes, I know he lost his parents when he was a baby and was raised in a semi-abusive home. But in comparison to all of his other friends (Ron, Hermione, Neville, Luna and the rest), he's a smug, stupid boy with an attitude. Snape is right in his assessment of the boy, and really, at some point, Dumbledore should've smacked him upside the head.
I've kind of characterized it as Danielle Steele or John Grisham for children; massively popular on a societal scale, not incredibly challenging reading, definitely has a plot that keeps moving and one interested in what's going on, but definitely not classic, nor grand, literature. Sorry, folks, I know Harry has a rabid fan base, but this is not Tolkien, Dickens, L'engel, Alcott nor Hodgson Burnett.