It's an old fashion anime because it's an old anime. It was released last 2007 and we expect at that time that the animation was way different that the animation in our current year. Let's just take an example for One Piece, the animation was different when it has its first episode than on the latest episode of the anime. The shortcoming for this anime is that it has only 12 episodes than in one piece was more than 1000 episodes.