not bad but not good
I purchased these due to the anti-fog coating. The photo-chromatic feature was the what prompted me to pull the trigger on the purchase.
They don't get dark enough in bright sunlight as they should and the anti-fog properties aren't there. They fogged up just as easily as cheap glasses would.
got hit by a bug on the lens and washed it off with water and the lens is now smeared. cleaned it again with prescription eyeglass cleaner that is safe for photchromatic lenses and the smear is still there. I just got these yesterday and would not purchase them again.