Well I think that this show kind of struck a cord with me because I have reason to believe I may have a younger sister (half-sister) living somewhere in this state, who would be about 12 years younger than me (give or take a few years). So it is a very real possibility that I run into her, or even become involved with her at some point in my life... I am only 22 now and I know she would be around 10 now so it isn't like this is a worry for the near future (when I am 32 she will be 20 and that doesn't seem like such a large difference), but there is no telling what could happen in the years to come. It made me really think how in the hell would I react if I learned the truth in that situation... it has brought up quite a dillema.
About the "age thing" some more, I have to agree that it is a little wierd for us to think in terms of the "age thing" but in Japan it isn't that big of a deal... I believe that girls at the age of 13 are "sexually legal" so that would really not be an issue if I am correct. I don't know why so many people are treating this anime like it is some kind of new idea. As you guys have mentioned before incest is not a new thing in anime, nor are underage relationships... perhaps it is the combination that makes it such a shocker... but more likely it is the fact that this anime deals entirely with the emotional dynamics involved in this incest/loli relationship. There is no other plot, or idea presented within.
I liked it alot too, the animation was original (although at times a little off) the colors used were excelent, they had no problems conveying the emotion they intended to portray, the music was scene/subject appropriate and managed to stay fresh. Over all this is a really good show. Although before suggesting this to anyone I would make sure and let them know about the possibility of objectionable or disturbing material (just like I make sure to do for Narutaru ;P ).