I ordered 2 pairs of glasses... bifocal and reading and they were superb! So, My wife ordered a set for reading and they sent the wrong lense prescription. The return was basic and simple and they credited us for the glasses and I ordered a new pair of bifocal sunglasses. They came out just right. Light, stylish and proper optics and they came in a short amount of time... 8 days I think. They are a wonderful alternative to the expensive prescription glasses elsewhere in the market. We would use them again for sure... great value, good service and a fine product! Thanks Zenni!