I was a little skeptical at first purchasing prescription glasses on the internet and from a Chinese manufacturer. I must say, however, with the exception of a few language difficulties with their customer service personnel, I was very pleased with the outcome. The frames and lenses are great quality. The price was fantastic. They got my progressive prescription perfect. The transition option (light to dark) is mediocre, lenses don't get very dark out in the sunlight. The processing time was a little longer than they state, but the delivery time once shipped from China was fast. I love the glasses. The fit is perfect. I will buy again.