I started in aug 2015 as an casual. worked full time till Dec but on call since jan 2016, and no call. Hopefully they will call me again but I just hate the wait and I'm one of those people who hate sitting home.
The job itself it good. Management - Site managers and above give special treatment to certain people. If they like you, they will be nice to you and bend over backwards for you. If they don't, they will be mean and not be too accommodating.