I think from what I've been told my people who have attended it's an "ask any question you want" and they talk more about the state of your boobs, your bits etc etc
I think they found it helps the women in the group bond and that they ask questions they are too embarrassed to ask in front of other peoples male partners. Our sends the men off to the pub for the evening to get them to bond too. Think they also get someone to come along who is bf a young baby and they tend to ask her lots of intimate questions!