I read them all in about 2 months... I'm a VERY fast reader
During the last summer vacation, I read books 1, 2, 3, 6 and a third of book 4 within a week. :D Of course, it was summer vacation, so I didn't do almost anything else than read. But I've never considered myself as fast reader. Maybe I'm just a no-life. :P
But getting to the point, I've read them all at least two times, most of them three or four times. I like Harry Potter series, because they are just so easy to read. You just get hooked up and want to know what happens next. They are pretty overrated though, but since when are the best books the most popular ones? Harry Potter is popular because it's not too deep and realistic for the children, but it also isn't too childish for the adults.
My first Harry Potter was The Chamber of secrets or whatever it's name is in english. ;) I got it on my 10th birthday, but I just looked at he cover and though it seemed boring. (I got some other stuff for a present that day I was more exited about) Later, when my mom started to read it aloud to me and my little brother, I got hooked right after the first chapter and read the rest on my own. After the 3rd book, Sirius became my favourite character, but I also liked Lupin. The main problem about Harry Potter for me is that I've never really loved any of the main characters. I think they're just okay.
SPOILER:
I cried a lot when Sirius and Lupin died. Damn you Rowling, why did you have to kill all my favourite characters? But still, I like the way the series ended. I could clearly see the final scene in my mind while reading it.
I've never really liked the movies. Something just doesn't feel right about them. I almost laughed through the whole 3rd movie, because everybody looked so different than I had imagined. And the dementors can't FLY, for god's sake! The recent movies have just been confusing, because there's so much happening in them. That's just what happens when you try to make a movie of a book that is so thick.