Looking at picking up a Schuberth S2 helmet in the next month. Seems there's a deal currently that if you buy one, you can get the bluetooth kit for $100 instead of the normal $430.

What I'm most interested in is how quiet it is. My Shoei ise in need of new pads right now. So it's pretty loud in there

 

I got an S2 and hated it. Just don't think it fit my head right. Really wanted to whip my head back when I turned to look left or right, peripheral vision was lousy, helmet was not quiet as billed, and couldn't tuck to get out of wind because back of helmet binded with back of my neck. All in all a huge disappointment. (Didn't like an RF-1100 much better. However, finally got an Arai RX-Q and am very happy with it.)