Advantages: Good price. No problems with the plating erasing as I have read in other reviews. No scratches yet. Cons: Tight fit. I thought I would break something during installation, but everything worked out. I would do it again if I had to. Oakley lenses are easier to install and just as reliable. I do notice the slight fluctuating distortion mentioned in some reviews, but for me it's not as bad as I've read. Definitely not bad enough to buy new glasses or give up sunglasses. I suspect it's due to the very tight fit, but who knows. If they fit as well as Oakley lenses and had no distortion I would give 5 stars.
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