I think they have catchy songs - but their riff's? You have got to be kidding me. If anyone makes a joke about power metal being a bunch of power chords, they'd play Power Quest to confirm it. Their albums always have 3-4 good songs, and then the rest are the typical non-memorable songs. I like keyboards, but too many of their songs are little keyboard riff's with a dun dun dun dun on the guitar.
I'd take many bands over them