Tricia,
Although I've never had this test I would venture to say that it's not as bad as some will tell you it is. Cricket seems to have the right attitude - it's a test made available to help you and prevent problems down the road. Hey, I always say if it's less painful than childbirth then I can handle it!! Although if anyone asks me about childbirth (especially a mom-to-be) I tell them it's well worth the discomfort and you truly do forget about the pain.

No point in scaring them about it.....
Good luck - and let us know what your opinion of it was.