What are your thoughts on human cloning used for good?

Human cloning used to the degree of not necessarily making a copy of a human exactly, but using that technology to enhance children before birth. To ensure a birth free of defects, disease, cancers, and perhaps if wanted guarantee eye color, sex, and attributes to a certain degree?

I kind of like the idea of a guarantee placed on a healthy child…I don’t like the idea of making copies of people simply for the way you’d have to practice and inevitably fail trying and having to live with the failed outcomes. But genetic enhancements I think would be a nice thing to have. I don’t think I would take advantage of the option to determine sex before birth, I think I would like the surprise. What do you think?