Without reading responses here- I'll just put in my 2 cents.
It's good to get any beliefs out onto the table during the initial consultation so that you know that you and your midwife are a good match.
I, personally, am Christian. A Majority of the midwives out here are not. They go with very very Eastern philosophilcal mindframes, and while I believe the natural ways are best, I do not believe in the religious philosophies behind them.
I'm not sure what you mean by 'really really Christian' because... honestly, lots of people do weird things in the name of Christianity. My grandma is Catholic and believes that my kids are doomed for hell if they dont get baptised as babies and they die- however we have never seen anything mentioned in the Bible about baptising babies or about people going to hell if they dont get baptised, and believe it's a personal acceptance and choice you make when you understand it. I think it's generally a good idea to get a feel for what philosophies the midwife has and where it plays into her birth. If she wants to 'baptise' the baby before they leave or... I dunno, lol- again Im not sure what her practices are, but this is why your friend should just ask her questions about her practices and get it out on the table. :)