Is it true that I will experience a pain-free birth with HypnoBirthing®?

Is it true that I will experience a pain-free birth with HypnoBirthing®?
Hypnobirthing

HypnoBirthing® does not promise painless birthing, though many HypnoBirthing® mothers do report having a relatively pain-free birth or one that they were able to manage easily.  When the cause of pain–fear that constricts the birthing muscles—is eliminated, birthing can be accomplished in a shorter period and much more comfortably. A relaxed mother’s body will produce more endorphins, nature’s own relaxants.  HypnoBirthing® mothers may still experience sensations of tightening or pressure; but most describe their birth experience as working with their body through the sensations, and thus avoiding the excruciating pain that is frequently spoken of by women who choose other methods of preparation for birthing.