Hmm.. I do seem to recall a thread here on Aishiteruze... the differences between that series and Binbou, though, are that Binbou seems to take itself more seriously in terms of subject matter and neither character really goes out of her way to make herself adorably cute (unlike Yuzu-- still love her onigiri song). While there are moments where the viewer might smile, Binbou doesn't really have any humorous moments and it doesn't drastically sway between drama and comedy the way Aishiteruze did.

I think that's why I couldn't really imagine GWers really embracing this particular series. The pace in Binbou is kind of monotonous. I personally like how there isn't much of a storyline and how it's slow-paced but I also think that most people wouldn't really care for this particular style of animation/storytelling. But hey, if you're reading this and you're still intrigued, give it a shot. Binbou just might pleasantly surprise you.