I did NCT & the post birth NCT classes, both were a waste of time, a lot of preaching about breast is best, natural births, reusable nappies, no expressing or formula etc.
I did meet up with some of my NCT group for the 1st 6 months or so but I didn't have much in common with many of them & I found that I met new mummies through monkey music, baby swimming & other groups in the area that I had far more in common with & I am still in touch with now.
NCT groups are done on postcode & due date so it's pot luck as to who you end up in a group with. Plus I think they can be super competitive about who's breast feeding for the longest, who's going back to work or not, when you are having number 2 etc etc.
Match Up Mums sounds like a great idea