Sorry peace-don't want to put people off NCT as it is all so variable but it was a mixture of things for me.
Awful breastfeeding 'advice' from someone who had never breastfed, including little information on tongue tie and what to do if supply was low and wasn't told about all the different positions you can try.
Very little information once the baby had been born (one example was, at my free NHS antenatal, was warned baby girls a day or so old, have a mini 'period' or spotting in their nappies, which is from hormones from us-never mentioned at NCT. I'd have freaked when I saw the blood if I didn't know that!)
I had a group of parents who either went back to work very early, moved or were a bit rubbish at keeping in touch (that was bad luck I'm sure), yet everything felt like a competition.
£300 odd quid I wish we hadn't spent to be honest!