Pros: very light and flexible, the photochromatic change is great for overcast, early morning or late rides, excellent field of view and protection, good look. No issues with scratching but I am very careful with my glasses.
Cons: No sweat bar and on hot days with some helmets with less front padding and even with a skullcap the sweat pours down the lenses and into your eyes. Perhaps not as dark as some want, but for me I do not notice it as an issue.
I really like these glasses, just do not like the sweat that streams from the helmet straight to the lenses. May have something to do with the Giro Aether helmet -- it has thinner front padding than my other helmets and tends to allow more sweat down. I have gone to taking a second skullcap with me and swapping them out. They are great for the shoulder seasons and winter where copious amounts of sweat are not as big an issue. My next pair of glasses will have all the features of this pair and likely a top bar as well though that will increase the weight. These are featherlight and that is very nice.
Do long hard pack gravel rides. Previously purchased cheap China look alikes. No comparison! Theres a reason things cost more. Quality of workmanship,materials used and how well thought out design of glasses for comfort and functionality. Lenses breath due to slits ,helping in fogging. Anti- slip nose piece and ear arm to hold fast. Did I mention these glasses are very light and sharp looking. This is a no brainer. Money very well spent