I have mixed feelings about NCT too. On the one hand, I didn't get the impression from my course teacher that she was very one sided. We went over all the forms of pain relief, pros and cons, and she was quite pro-epidural in a funny sort of way. Not "go have an epidural" but still positive about the benefit of pain relief being available. Very anti-pethidine though.
I do think the courses vary far too much though. The one I went on included nothing about labour techniques. No positions, no breathing exercises, no massage, none of the things I thought might happen. There was a bit about after you've given birth that was kind of useful, but it wasn't focused on practicalities enough. There didn't seem to be any structure too it and I think had I not been reading other birth stuff I might have struggled to put it all together.
She also disappeared once the course ended. Not one of us got an email back after we gave birth, despite letting her know. There was no reunion class organised. When I eventually emailed her asking about the reunion class, having realised this is meant to be included in your fees, she said "oh let me know when you're next all meeting up and I'll come along". None of us really wanted to see her again after that so we didn't bother.
I did get sent a feedback form, but it was anonymised so I have no idea how they match it up with your teacher. And at the time it was sent I had a 2 week old baby and filled it out in a muddled state of amazement that I was coping. It was only later as I spoke more to the other couples on the course and people who had done different NCT courses that I realised our course content varied so much from others.
And I do think this is a problem. I really think there needs to be more standardised content and delivery in the courses so we don't get so much of the personal views creeping in. And the NCT could really do with commissioning a proper piece of research into their courses rather than relying on feedback forms. From what I have seen I don't think the central bit has a clue what is going on locally.
I don't regret doing NCT and probably would still recommend it to people, depending on what they were looking for. But in hindsight part of me does wish I'd spent my £300 on the hypnobirthing course instead.