I have been going to Costco optical for years now. At last purchase I wasn't really happy with the sunglasses I bought. They were too big and always felt they were falling off. The girl that helped me at purchase tried to fix but basically said sorry best she can do. Yesterday while purchasing a new pair I mentioned this to Felix. He asked me to get them from my car and let him take a look. After about 20 minutes with him working on them, they are fixed. Still frame is a little too big for my head, but they stay on!
Felix is awesome. I highly recommend Costco optical but seek out Felix! He will direct you into the right frame before you purchase.