The Dark Smoke is great on my Arai Corsair RX-7 helmet. Images are clear during the day. It's just a little darker at night, but everything is still visible. I get a lot of comments on how sleek it looks with the dark faceshield compared to the stock clear faceshield.
My only gripe about the Arai helmets: the face shield is hard to install! Taking the old shield off is a cinch but the install is the painful part. I wish they provided better instructions. After a few attempts, i just Googled it and had to watch a YouTube video. Even after watching the video, I had to try a few more times to finally get it in. I was so afraid I was going to break it.