Mike, HBO works! Five years after I had it, I could not be healthier, or happier with the results. A side effect is often temporarily changed vision. In my case, the change has been permanent and I no longer need glasses. I had the sharp knives, evil death rays, and poisons, and this treatment was a piece of cake -- no pain, and revascularizaiton of the jaw so titanium implants could be placed and stay firmly placed. I am a true believer for sure!