Bung: I don't know if this is same site you used but this was on reddit
"THIS BRAND IS A SCAM. They buy cheap glasses from Amazon and resell them at double the price. They are the exact same models as the kapvoe sunglasses on Amazon. I called them out and asked for a return and they gave me the runaround. Don't buy these!"

Funnily enough I had seen some ads on INstagram and Facebook and so did a bit of research and in general the feedback seemed pretty prositive, so I figured "why not". 

Reddit questions and answers led me to believe that they erwe better value than their big-brand equivalents, so on that basis it's not a total bust. 

They work, they didn't break the bank and despite not quite being what I thought I had paid for, they aren't completely terrible.