I'm definitely a believer now. I never had a true pair of running shoes till a few days ago. Just took my first run on the Adrenaline 8 and wow are they nothing like I've ever ran on before.
I've never even heard of them till I went to some specialty running store but these things are just sick. They have some kind of roll-bar thing that stabilizes your foot if you are pronated and have cushioners everywhere. Definitely check out Brooks if you want to get into running seriously.