I looked through a lot of their channelings.
My litmus test for channels is whether or not they speak the truth. I ran across one session where they asked about missing children from Union SC.
http://perceval.netfirms.com/sessions/941028.html
They were way off base on this one.
The case in question was the famous Susan Smith who drowned her own children.
http://en.wikipedia.org/wiki/Susan_Smith
So for me - they have no credibility.