Starbucks is to coffee what Uwe Boll is to horror movies, at least according to aficionados. That may put it into a bit more perspective.
I know it sounds conceited and "high-fallutin'", but the stuff they serve in Starbucks is more like candy-flavored hot water.
Don't get me wrong, it tastes really good...but when I think of coffee I don't think of Starbucks. I know I go on and on about this place, but there is a reason that there's not a single Starbuck's is in Italy...they are ANAL about their coffee here, as it's pretty much the coffee capital of the world, complete with snobbishness; they want authentic coffee, not sugar-coated caramel syrup in hot water. Anyone who's been to places known for coffee never goes back to Starbuck's.
France is another place for good coffee...but stay away from Germany.