If your friend was considering genetic modification to have a child and asked for your advice what would you tell her

Do whatever she feels and I would support her in anyway or any road she takes.

Science is advancing by leaps and bounds, but it is important to know all the advantages and disadvantages that such modification presents, for both mother and baby. You need to think about whether you want a perfect baby or just eliminate some hereditary disease. On the other hand you should think about the risks and the well-being of the baby.