I have just started watching Black Rock Shooter, i have to say that through the first episode i didn't understand much. But as i got through to the second and third i started to understand more about the Anime. I realised Mato Kuroi is the main character of the Black Rock Shooter anime, she also has her other self, who is the Black Rock Shooter.
I found the story quite confusing at first, it even creeped me out at the start, but eventually i got into it and im really enjoing the story.
I'll blog about this anime again soon, when im through all the eight episodes.