I have owned one now for about 4 months.
What can I say,
Plus side: very comfortable even after all day in the saddle. Has terrific vision almost like wearing an open face, peripheral especially. Good space around the ears which accepts earphones easily without cramping the ears at all. All lining removable for cleaning. Visor can be removed for use with goggles.
Down Side: Have found it mist’s quite badly, especially if you have a screen and the chin bar is generally below it. Get a bit of buffeting caused by the peak especially when looking to side or behind. (more so than I have experienced with a moto x helmet). Removing the visor for cleaning is a pain in the ass. To many screws (which can snap off quite easily ask Arai) they seem to be a dead length for the hole, just asking to be sheared off, have shortened mine, no problems since (said with crossed fingers).
If you have rain on the visor you can get quite a lot of reflected glare from oncoming lights etc. I think this might be due to the angle of the visor where it has to reach out further to the chin bar.
General: Doesn’t quite get there as a moto x or a road helmet (shame really), expensive. As a overall rating I would give it 6-7 out of ten. Nice try the next model should be better. But it dose look the dog's even better with a black visor.