As many of you already know, the creator of Yu Yu Hakusho, also made this. Yu Yu, being one of my all time favorite anime, this comes right up there are well. The animation is so fluid; fighting is dynamic. After every week, I feel the yearning of watching another episode.
Character uniqueness is what drives this story. A team of a doctor, an assassin, a loner and Gon. Unbeatable force.