I never watched them. Certain things just don't peak my interest because of their miserableness.
Over the 3 series you seen a whole group of people's lives fall apart, featuring an abusive dad being back on the scene, and restart abusing his daughter and her mate, eventually being murdered with a hammer with his eldest daughter. Was also loads of adultery going on within a group of friends, everybody was fed up and all hated each other. Oh and somebody got addicted to smack and got date raped at an all night rave.
It was very depressing.