The Sensor Mirror lens offers great contrast in flat light. I also purchased a Platinum Mirror lens which is a good all-around lens. The lens are fairly easy to swap with practice. The goggles are comfortable, unless you choose to wear a ski-helmet. Even if your helmet is made by Smith (I wear a medium Maze), the goggle-strap is probably not long enough to avoid compressing your eyeballs. You can buy a Smith-manufactured "Helmet Helper" strap extension for $5-10...plus $8 shipping/handling. Or you can make a ghetto substitute like I had to, since the Helmet Helper was out of stock almost everywhere when I got these goggles. In case you were wondering, the giant strap-buckle will not allow you to wear the strap inside of your helmet. My $40 Smith goggles came with a much longer strap that has fit all of my ski helmets. I would expect a goggle that retails for $110 more would give me an extra 2" of strap material. Or, Smith could include the Helmet Helper with the goggles. It shouldn't be this hard to be a ski-bum.
These goggles were great looking and priced well....unfortunately, they were just too big for my face.....a huge disappointment to me as I wanted them for an upcoming ski trip. Had to return them :-( & start a search for another pair. Return was easy & well documented by supplier & Amazon....haven't received my credit yet, but I have no doubts it will appear on my statement soon.
Love the goggles! Wore them over a smith vantage helmet. No problems and no gappers gap. I bought the helmet helper but didn't need it. I don't have a very wide face, that may be why. If you have a wide face and are wearing a helmet, you will probably need the helper