Crumbolst's review here. Along with Sandy's grade. And the review from Print is Dead. And, of course, Mt Benson Report has trod this path as well.
Sandy, I'd give it a B.
dsgran, I feel like I agree with you when you write, "but as a graphic novel, it doesn't have a life of its own" even though I'm not certain I know what you mean (in that as I have read just one graphic novel (this one) I don't feel qualified to comment on this one's qualifications/merits with regard to the genre).
And, Crumbolst, I think you have it right when you say, "Even the most terrible moments are conveyed with an unflinching matter-of-fact tone that seems to simply pass any appropriate angst on to the reader."