The shouts do like great, especially that charge one that lets you move fast for a few seconds. I wouldn't put too much stock in 1 hitting dragons, I'm sure this toon was probably maxed out so it wouldn't die during the demo. I doubt when you first meet a dragon they will go down that easy.That storm shout’s effects looks quite impressive. Almost as if it is overpowered. In the extended version of that demo it defeated the second dragon pretty much all by itself.