I have no direct experience or references on her, but from what I can see, she appears to be a legitimate professional, with a Lovaas/ABA focus in her therapeutic approach. The online program looks more like a parent training course (which is great, if done well!) than true online therapy. That's reasonable, of course, since it would be tricky to do ABA directly with children online. More useful to teach the parents how to do it with them, and better transfer and generalization anyway.

...pronounced like the long vowel and first letter of the alphabet...