One thing that did suprise me about this show is how little CGI is used. I say that because its another show made by Gonzo, who are always big on the CGI effects.
You do get some cool animation at parts though. And this show doesn't really require huge CGI.
Also I think the characters in this show are realistic. I won't go into detail, don't want to spoil the whole show for you. [img]i/expressions/face-icon-small-smile.gif[/img]