Premature Ejaculation: Prolong device?

Hi,

I'm also in the process of quitting porn. I always had a problem with premature ejaculation: I had tried the start-stop technique at various points with my gf but really didn't work.

I came across the Prolong device that got some publicity and I'm wondering whether anyone has tried it?

Essentially what it does is using vibration to desensitise the area under the head that is quoted as responsible for not being able to last. Any thoughts/experience is really welcomed.