ABA Therapy ... ?

So, I got a call this morning from Hayden's Early Steps Coordinator (M.M.). She gave me the email address to a certified ABA Therapist in town. I'm not exactly sure what ABA Therapy is and can't find any concrete information about it on-line, but it is somewhat pricey. It seems that unless you are military and have Tricare your insurance doesn't cover the therapy and you have to pay out of pocket. We will see. I may pay for a few sessions (at $45/hr) and see how it goes and if nothing terminate the service, still not sure. That's a lot of money in the great scheme of things. It would be helpful if I knew somebody who had been to ABA therapy with their child. It scares me that it is 100% linked with Autism and not really anything else ... well, other pervasive disorders, but not what Hayden has. I really need to just meet with this therapist and see. Her email back to me was very vague. Here's to skeptism and hoping (I guess).