Mine arrived the other day, and I used it for the first time this morning, riding some 20 miles to work.
It is the most expensive helmet I have ever purchased (even at $329), but the quality and details are easily apparent. Still, it is not as quiet as I had hoped. It is quieter than my Scorpion EXO modular helmet, but I still hear quite a bit of wind noise and helmet buffeting. Perhaps that is attributable to the fairing on my Norge and the many semis causing tornados on the freeway.
Mine fits very well. (It is an XL.) It is comfortable and does not cause pain like my Scorpion did for the first 100 rides. I am looking forward to installing the bluetooth kit.