Im going to keep this short and simple. The animation had no flaws in it that I could see, but its just looked like every other anime, nothing special.
The sound/music, well none of the music got my heart racing or lead me to feel like " I need to know what that is!"
Characters I actually thought were putting appealing. I really wanted to know more about each characters background story because I felt that they would have something interesting to talk about. Japanese voice acting was fine, no flaws.
However, the killer of all manga for me is the story. And after a few episodes I just stopped. Their was nothing their that gave me the need to figure out what would happen next. I just felt like a filler episode without a main storyline.