First things first. This is not a series for everyone. Its not one that the average individual can relate to on most, if any level. The amount of angst, self-loathing, rage and general downer mood of it is not something that, everyone can stomach. It lacks all the comforts that readers have grown associated with. This is not a hurt and comfort story or that softens the pain with humor. What you have here is nothing more than drama and angst at its roots.
That being said, what you have is something that can only be considered a work of pure and simple brilliance. Its the kinda work that once you put down, start from the beginning again. A work of simple and pure magic. Unique beyond belief, running along the lines of series like Onnanai Kurosawa , you know you;ll never see a manga quite like this ever again.
Unlike most manga you probably won't find a character that represents you or some sort of common ground that links you to it. Its not a manga about ordinary people achieving greatness or dreams, nor is it a manga about broken people finding an outlet. Its a manga about those few blessed with more talent than they know what to do with trying to live to live up to the destiny before them. Being hurt, hurting others as they struggle not to live, but to exist in the world. You don't get characters, you get people whose depth, make oceans seem shallow and are as confused about themselves as the most disturbed amongst us are.
The story telling and pacing are on unreal, each page more interesting the previous. Its a fresh story the likes of you haven't seen before. While stories about manga-ka aren't common by any means. This one takes a completely different direction from any that you've read before. The art style at first seems a bit awkward and shaky, but quickly becomes apparent that it simply fits the story as well as improves as it goes on.
This is in the top 1 percentile in originality, story and character development. If all manga were like this then I could never stop reading