Okay, so I've finally caught up to everybody else: I've finished Harry Potter. Yeah, I know, I know. I'm old now. I read slow.
Anyway, because I know you'll ask. Here's my three word review until I have more time to talk about: "I was satisfied."
Now that I have finished, though, Ken sent me over this Comics in Context article from Quick Stop Entertainment by Peter Sanderson. And if you've read anything by Peter Sanderson--yes, the same guy who worked as a researcher for both DC and Marvel--you know he's thorough as hell.
So yes, Sanderson in that bit, writes the first of hopefully a few articles analyzing the Harry Potter series. Definitely worth a read.