They always get the prescription correct, their prices are terrific, the turnaround time is reasonable. Whenever I get a new prescription, my next stop is KZFOO, and a couple weeks later (like today) I put on my newly-arrived glasses and can see so very well. I have been buying from them for years, and my only complaint is that sometimes you find a frame you really like, and when you go back to order new glasses, those frames are gone. But in terms of the lenses -- you can't do better anywhere, and they really do have a great selection of frames.