Well it's pretty early but I can say that for now, it's very good manga.
ART: The characters are very well drawn and detailed.The artist foces in the eyes of the characters (ecpecialy the main) and it's kinda creepy but the illustrations are so good that you just stare with awe. The art here it's great (and a little bit mature ( ͡° ͜ʖ ͡°) ) .
CHARACTER: The phychosynthesis of the main character is a little bit strange but with the way he is introduced everything fit right. As for the others we don't know much but for now everyone is matching with the whole atmophare.
It is a good story , for some reason it is rather familiar to me but I enjoy it. The story really reminds me of something but...nevermind. It is brutal with no reason sometimes but if you exclude than it's ok. The storyline it's not really what you would call marvelous and thrilling but it fine.
I have read all the available translated chapters :)
Hope I was helpful!