I have committed the cardinal sin of reading the OP and skimming the rest I'm afraid, so apologies if I repeating!
I'm sorry some of you hadn't had good teachers, they do seem to vary in the quality of the classes!
I was lucky, I have very good AN classes with the NCT, it was done over a weekend, 5 hours each day with a break for lunch (which was delish both days!).
We talked about the run up to the birth, symptons, methods of encouraging labour, inductions and we did talk about caesarians as well.
We also talked a lot about early parenting in look group discussions, we talked about baby blues and PND which I thought was good and how having a baby can change your relationship using role play.
We also had a visit from a couple with their 17 week old who was bottle fed, didn't seem to be a problem and she mainly talked about the birth and days afterwards and her recovery.
Breastfeeding was covered by a separate class by the local BFC.
I think the problem is there is no standard curriculum or method to these classes - I understand costs can differ too, as we paid £120 for our classes and it looks as though other s have paid differing amounts. I can totally understand people's frustration at paying out all that money and not getting much out of it, but you need to be clear on what you what discussed - we were invited on the registration form to put down any particular concerns that you had, one lady asked to discuss CS as she had placenta previa and was likely to need one.