I am not for or against Harry Potter. I've only read maybe a couple of chapters of the first book and that's all. But, Harry Potter has what is called 'Pottermania' where he has so many fans and fan sites via the internet.
I got the audio book of the first book for a neighbor's kid, but they moved away before I could give it to her. I ended up listening to it myself and got hooked on HP. Great stories, much richer and more detailed than the movies. I think they're great for all ages.