Overall I really like them. They are very clear which has been a problem for me - most all of my sunglasses have a slight blur to them, which I credit to poor quality lens. My peepers are not like that though! The only reason my stars are not higher is the bifocal part is way too small. I got them for driving so that I could use the bifocal part to be able to read the GPS screen but to do so I have to tilt my head WAY back making it virtually impossible to effectively use. I actually thought when I ordered them that the bifocal would be larger. However, I am keeping them for the value of the crispness of the lense for the sunglasses.