L.R.
Greek yogurt is awesome. It has twice the protein of regular yogurt. We eat it a lot because my daughter and I don't eat red meat at all and it's a way to get a lot of extra protein. Compare the labels and you'll see it has a ton more protein.
Most of the brands of Greek yogurt also do not use artificial colors. I gave up Yoplait because it has a lot of color chemicals in it for no reason other than appearance. No one needs fake colors in their foods, especially kids.
Some Greek yogurts have a "tangier" flavor and those used to sugary American style yogurts may not love that, but it's delicious to me. Greek yogurts are also MUCH thicker and richer and therefore are very filling! They may have a few more calories but it's worthwhile due to the much higher protein content and the much more full feeliing they give you - you will not feel hungry again right after eating them, whereas to me, American yogurts are so thin and sugary I feel hungry soon after.
To meet American tastes, the companies producing Greek yogurts over here are going with sweeter flavors and more fat free and sugar free versions but I prefer the real deal. Better to eat less of a good, non-chemical product than more of a chemical-laced one.