Soy a Superfood?

It seems to me that there isn't a real truth to any of soy's claims. There doesn't seem to be any significant evidence to prove or not prove its greatness. Soy has recently become a popular new health food, but no one seems to know why. It seems to have some negative aspects, including traces of a "cousin" of estrogen. In contrast, Mr. Corbin stated that it has cancer fighting abilities. In my opinion, soy needs to be researched more for people, and myself, to draw a conclusion if it is a healthy choice to eat.