What is your opinion of human genetic modification in respect to removing damaging defects?

treating hereditary diseases, then fine, but i'm against the overuse of it..! most people want to extend the research to the point of engineering the "perfect" baby..! not just making him/her disease-free but pretty and intelligent and the like as well..! i mean, who gets to say what's perfect or what's beautiful..?! beauty is in the eye of the beholder..! we should only do so much..! GOD will take care of the rest..! =]