Sounds like a bunch or crap to me. Let's say it does work though, what else does a person risk losing when they zap your brain? I would rather not take this sort of risk without having more information as it could have devastating effects that weren't desired.
Ultrasound brain zapping is a new thing for me to hear but I know about another brain zapping therapy that's called electroconvulsive therapy. This therapy induces a controlled seizure in the brain using electrical currents. It's mostly used for the treatment of treatment-resistant depression. I believe that ultrasound brain zapping is not crap if it's a mild form of electroconvulsive therapy but I'm personally afraid of such things. Messing with your brain comes with serious consequences, especially when you zap it. Working on self-control is a much safer and better thing to do to my mind.