I'm a huge skeptic. And extremely cynical. And don't think I'm a good candidate for suggestion, hypnotic or otherwise.
That said, I did the hypnobabies homestudy course, and am pleased with the effect it had on my pregnancy and birthing experience. I had excruciating nerve pain in my hands, and the techniques helped me cope with that. I used some of the techniques during a couple less-than-comfortable prenatal appointments. I also rested very, very well. Those CD's knocked me right out every time I listened to them. As someone who frequently suffers from insomnia, the restful sleep alone was worth the entire program. The reading was nothing new to me. Spend a couple of months reading the pregnancy boards here at MDC and you'll get mostly the same information.

But it was nice for positive reading. I thought the CD's were well done. Overall, I would do it again in a heartbeat.
That said, my labor (or birthing time) was
not pain-free. I had a very quick labor, so I'm not sure how to break it up into "early labor" and "transition" but during the first, less painful part, I tried to get the whole anesthesia to my birthing muscles and it didn't numb me at all. It did, however, help relax me. The first part of labor felt like awful gas pains with pinching in the cervix. Transition got a little intense for me (though my mom and husband said I handled it really well), and pushing hurt like the dickens, but I did it very, very slowly, just breathing the baby down with small grunts. I think this was a result of my being very in tune with my body, which was telling me not to actively and aggressively push her out. It hurt so that I wouldn't over do it, if that makes any sense. Going slowing, staying aware, and being mindful of my labor resulted in very little trauma to the girly bits, and a barely-there "scratch" with no real tearing.
Initially, I was pretty disappointed I didn't have a "euphoric, pain-free" birthing experience. I was irked with myself for wailing twice during transition, thinking for sure I was a hypnobabies failure for such vocalizations. But in retrospection, I am extremely pleased with how my birthing went. I'm proud of myself and my body. Everything worked really well. The pain that I experienced, in my opinion, helped guide me to birthing my daughter in the best position and with a good, steady pace.