The art is amazing, with great action scenes. But it falls short on... pretty much everything else. The plot is subpar and handled terribly, and the characters are flat and uninteresting. The horror element is there but I feel that it relies too much on shock and body horror (which it doesn't even do very well, the art style is too stylized to mesh effectively with).
This is horrible, taken seriously or not. Mahou Shoujo of the End, atleast had more unique ideas and is better read as a twisted gag manga. Dolly♥Kill Kill is a pass for me.