I bought the first book in this series last week, for the same reason, I think, as most adults - to see what all the fuss was about. Whatever I was expecting, it certainly wasn't what I got!
I'm an avid Stephen King fan, and am also completely immersed in Tolkien's Lord of the Rings Trilogy, but never in all my days of reading can I remember such fast-paced, frantic turning of pages as when I was reading Harry Potter! I had to force myself not to flick ahead to see how the really tense or exciting bits turned out! I just couldn't put it down! My 2 year old son's normal bedtime stories were replaced by whatever part of the novel I happened to be at! All housework was done one-handed! Quiet periods at work were spent with the book in hand! I was racing through the story to see what happened next, and laughing out loud the whole way through at the antics and sayings of Rowling's excellent characters. I can honestly say that I've never enjoyed a book more!
After finishing the fourth novel I'm now quite sad, and I envy anyone their first read of this excellent series. Needless to say, I've just purchased the set for my younger sister, and am prepared to convert anyone who'll listen to me!
I can't wait until my son is old enough for me to really read this to him and see the delight on his face!