I haven't done one, but I do recommend it. I did their antenatal classes, and the c/s bit was really informative. They went through not just what happens, but when and where and a fair bit of why. Also a full run through of who will be in the room and why, and all that other stuff that can vary between hospitals. And a really good list of what not to do.

A mum in my MG did one, I can ask her for more deets?

Oh, also, they have a YouTube video tour on it that you might find good. Between that and BB you'd probably have it covered, but for the lay-mama, I'd recommend it