A_L @ My friend's younger sister reads it and she's 10. :P She's a really advanced reader though, so go figure.
~PL~ @ The manga is pretty much a comic book, it took me about 20 minutes to read it cover-to-cover. XD It's really good though. :P Completes the story really, so I'd suggest it. o:
I started the series about 2 weeks or a week and a half ago, I'm on book 3 no. I had about 200 pages left yesterday, and by the end of teh dya i had to stop myself from reading the last chapter, because seriously, the books are addicting. When you're not rading, you think about reading them! XD