hazelnut adds a spark of flavor to the coffee especially if it is decaf.I also noticed that hazelnut creamer really adds a huge flavor burst by adding an smooth, even flavor to the coffee.
I've tried just about every brand of decaf flavored coffee pods. Green Mountain hazelnut decaf blows all other brands out of the water. Yummy smell, no butter taste. I wouldn't say it tastes like hazelnuts necessarily (you'll need to use a flavored syrup for that) but it's got a mildly nutty flavor to it. Delivery was quick and all pods were intact.