I got to try one last year. I rode from LA to Laguna seca for the GP race. It is an awesome helmet, I love the flip down shade feature. I wanted one but the guy that let me use it got it in Europe and didn't think they were available in the U.S.. If they are I WILL buy one.
Don't wish to burst anyones bubble here, but I thought I'd let you guys know.
I was gonna get one of these helmets cos they are super cool looking. In the UK, we have a government organisation called SHARP who test helmets by subjecting them to impact to see how they'd fair in an accident. They have a 5 star rating. This helmet got 4 stars but out of the time it was tested, only 58% of the time the faceguard remained fully locked downwards, which means you have almost a 1 in 2 chance of that flip front flipping open upon impact on the ground and doing your face some serious damage. Something to consider, especially when this helmet costs £300 GBP