I'm new to the higher end sunglass market, I've always just had the cheap ones. This winter though I found a pair of Costa's with the 580G lenses at a reasonable price, so I pulled the trigger. Wow, am I ever glad I did! Like I said, I haven't worn other high end sunglasses before, so I can't say how they compare. I can say they are amazing though and worth every penny I paid for them.