Another person here who benefitted hugely from the Birth Skills book. I also thought it sounded a bit fluffy initially, but it's actually totally based on physiology and methods for dealing with pain response.
My birth was very much faster than I expected for a 1st time, very intense experience but overall positive. I was 40+2, and had been having the odd braxton hicks but no real contractions. Waters went at 11.30pm, was told by hospital to come in straight away (different rules in France), I was hooked up to monitoring for about half an hour while contractions got stronger. Definitely like bad period cramps at that point. Then went off into our room about 1am, and it all kind of went a bit mental from then on - vomited a lot and had diarrhoea (at the same time!) in between contractions. Initially bouncing up and down on feet and leaning over sink helped me cope, and I had TENS too which helped by giving a different stimulus (it's a lesser pain I guess).
Then things got more intense until it was like BotBoticelli said, cramps like food poisoning but more severe and extensive. I found moving straight onto the "vocalising" technique (i.e. bellowing) was the most helpful thing at dampening the pain, couldn't concentrate enough to do anything more complicated. I think TENS did help too, husband was in charge of the boost button. Also, having him time the contractions and talk me through them, counting down 30 second intervals, made it so much more bearable as I knew when it would end each time.
At about 4.30am I said something like "f-cm this is pretty awful, might not be able to cope if it's another 12 hours like this", asked to be checked and was at 9cm - such relief (and obvious transition experience!).
It had also been feeling different, not like needing to push, but like somehow things were 'moving'. Transferred (waddled) into delivery room, and after some uncomfortable pushing in a squat by midwives to better position the baby, I had to get on the bed (again stupid rules) to start pushing. It was good to be able to feel when to push, it helped me be in control. After 45 minutes, I felt a weird very tight sensation that was her descending, and the doctor said I could feel for her head coming out. I was offered an episiotomy because they thought I would tear, and despite no anaesthetic, it wasn't as bad as I feared. Then the next push her head was out, and I remembered to pant lightly, and then one more and she was born. Couldn't believe I'd done it all with TENS and old-fashioned bellowing.
While it was a totally positive experience (and I feel very lucky), it wasn't "pleasant": very intense from early on, and very painful at transition (but crampy, not sharp pain). I had no sense at all of time. Also, was surprised it still hurt in between contractions - wasn't sitting there having a cup of tea like on One Born, all I could manage was zonking out/ even falling asleep for two minutes till husband told me the next one was about to start...
Plus, pushing, while not too long, was massively hard work, possibly not helped because I was on my back on the bed. Not only did the contractions hurt, but I found it painful to take deep breaths to do decent pushes during each contraction.
The whole thing was like climbing a huge mountain- full of physical discomfort and enormous effort, but such an amazing high afterwards. When my husband pulled her out and put her onto my stomach, all heavy but somehow so light, squishy, wet and smelling heavenly: BEST MOMENT OF MY LIFE