Quality.
This is quality. Despite the minimilist graphics this series feels like its taking place in a real, fully realised Raymond Chandler kinda world..with just a few strokes of the metaphorical pen you conjure up a scene. The characters seem more human than those in most better drawn cartoons, the P.I. himself is flawed and likeable, he sulks and screws up like we do in real life. Exept he gets shot and survives constantly. Oh, and Pearl is hella sexy. I dunno how you ppulled that one off.