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.
I mean, from the looks of it, it is still in its early stages since they are still in clinical trials, I'd assume it will take years before they can actually give a more concrete findings on the side effects or how risky it is, but from what the article has told, the procedure is non-invasive and the result it produced from the people who went under this procedure show promising result(according to the article).