I am 100% satisfied with my KZFOO glasses. I purchased glasses from an optical center last year after getting my eye exam. I paid over $400 for two pair, and I never wear them because I can't see through them. I hate them. I've ordered from KZFOO several times in the past, and have always been pleased. My newest purchase, I wear daily! I paid $45 for this pair from KZFOO! Thank you. I just ordered my mom a pair and got them for 75% less than she paid for her last pair. She is also extremely pleased. We love KZFOO, and highly recommend their products and services.