Sorry... sorry.... I know people love these helmets but I absolutely detest mine. It's very comfortable but that's about it. The visor's rubbish, because it's got a double something-or-other you can't put a fog city in it and the anti-fog coating is useless. On top of this, water absolutely pisses down the inside when it rains making it really dangerous. Also, I can touch the inside with most of my chin, not just my "puckered lips" which I'd imagine's not great in an impact. Already mentioned are the terrible vents which will snap off if you catch them on anything, perhaps that's a saftey thing, but I've got two holes on the top of my helmet that the vents used to cover. On top of that, if you make the effort to get the visor to seal against the helmet to try to avoid the influx of water and wind, you'll probably find that the visor will scrape the paint off the top of the helmet when you open it!
I can only assume it's me 'cause lots of people love these. I wish I'd not smashed my shoei up.