Brain training CDs/Neurological feedback any good for treatment?

Being new to this site, I think I am posting stuff in the wrong places - so this is a duplicate of a 'comment' I posted.

Has anyone had experience with SharperPrograms? (http://www.sharperprograms.com/) or Ace Clinics? (http://www.aceclinics.com/ADHD). They both sound good, but I'm a bit suspicious of brain improvement type CDs. Thanks.