I have classically absolutely refused to purchase sunglasses costing more than $10. And I have generally worn those $10 glasses til they fell apart. BUT...I decided to splurge on these because I was tired of the ill-fitting nature of some of my el cheapos. :) I could not be more pleased! The fit is wonderful and comfortable and I love the wrap-around style of the lenses. They do a great job of really making you forget you are in bright sun, because of the full coverage. Yet, they are exceedingly clear lenses. They don't slide on my face and ears (which is a miracle because so many glasses are too big for my smallish facial dimensions). And...I like the way they look. Interchangeable lenses are nice, too, though I keep my favorites (the darkest ones) in most of the time.