I've been through a course of EMDR, with an okay therapist. I went into the experience willing for it to be a success.
Eh. It was useless. I don't think the science is there, the fancy explanations for it I don't think are legit. I do think pieces of it might help, it is after all time to focus on our experience, we do get a guide, and we get cues to help train us in how to calm down.
http://skepdic.com/emdr.html
Some more info.
Sarah