I practised Natal Hypnotherapy from week 30 of my pregnancy (to be clear this is different from Hypnobirthing - it is the UK approach to Hypnosis for birth).
Good Points:
Relaxation and breathing techniques can be learnt by reading book and using CD (do not necessarily attend a course). You don't need all of the CD's, just one will do.
Process of learning about Natal Hypnotherapy by reading book and attending course calmed me down immensely to the point that I was looking forward to the birth and excited by the prospect of labour (something which scared me for so long)
I didn't wish the pregnancy away towards the end as the theory behind natal hypnotherapy is that your body will do what it should do naturally, ie not all women have babies at 40 weeks; babies will come when they're ready.
There is huge focus on the birthing partner - lots of techniques and tools for the birthing partner so that they are not a spare part. My OH knew exactly what to do and read me perfectly during the birth of my daughter; he knew when to support and knew when to leave me be - this was all down to Natal Hypnotherapy
Bad points:
Cost of course is expensive, £85 each and there are 2 workshops, personally felt the workshops we attended over a weekend could have been combined in to one day. However, if you purchase the book, it is good if you are reflective and learn that way. The course will benefit you if you are more of a visual/practical person to learn some of the techniques.
In summary, having booked gone to the workshops and read the complimentary book I found Natal Hypnotherapy fantastic. You find yourself asking yourself why birth and labour is so medicalised when 1000's of people a day in different parts of the world give birth to healthy babies without medication. During labour (slow labour for 5 days and hard labour for 10 hours) I was calm and contented, knowing my body would do what it should do naturally. I gave birth to a healthy baby girl (8lb 12oz) with only with gas and air. The relaxation techniques I continue to use now and can be applied to anything (work, home, fears like flying or phobias)
I would definitely recommend!