Thought I would try to counter some of the other reviews. Violent criminals are mostly very unpleasant people and this show is full of such people. Paz is not a lovable crim like Ray Shoesmith (Mr Inbertween) Paz is man of low intelligence and high energy trying to climb to the top. He and his colleagues are deeply unpleasant individuals who should be locked up or shot depending on your point of view. They are violent and deeply unpleasant asshats. In that respects they remind me of the characters in Goodfellas, a film I can no longer watch. Much as I love Ray Shoesmith as a character, I hate Paz, I want to see him dead. This is not bad acting, bad acting I wouldn't care. I will admit I find the film hard to watch because the show is full of authentically nasty characters.
Anyone who has been on the receiving end of such people would most likely agree (if they are left alive.)