I ended up with this helmet after trying a couple of other helmets.
It is super comfortable! The ventilation is awesome; if I turn my head, I can literally feel the wind blowing my hair. I love the fact that no one I ride with wears anything close.
The one issue is that the straps, while comfortable, are a pain to get set and never lie flat.
All in all, I'll be wearing it as long as I can and would probably get another if I had to replace it.