My scores may not make much sense but it's because the story series delines as it progresses, but the art and characters remain strong. The enjoyment was a 10 untill roughly halfway through the series and this has marred my overall opion, as explained below...

It's good untill it gets stupid - I can accept the initial premises of a manga like this (Shinigami exist and kill people by writing their name in a book), that's fine because it's explained right at the start and as far as I'm aware that's the only difference between this universe and the manga's.

However, unfortunately, the plot devices just get too ridiculous. It didn't help that my favourite character died but that really isn't why I stopped reading (same happened in Claymore and I still really like that). The thing is, this manga claims to be intelligent, which it is to a degree but it fails at being intelligently silly which, regrettably, is what this becomes around the point when I stopped reading...