I was looking for some px sunglasses and went to this place for convenience and because it had a deal with my insurance. The offer for sun glasses was very short so I went to Sunglass Hut to choose the model I wanted and went back to 20/20 to choose from a Ray Ban catalog the same model I picked previously at SH. The Ray Bans cost $160 (frame+lenses) at SH and 20/20 quoted me $380 for the same model, for the frame alone.
When I told them that was ridiculous I was told "you only buy if you want to" with the nastiest tone of voice I have ever heard. Anyway, their quote for the frame + px lenses + polarization etc was ~$580 out of pocket on top of what the insurance covers. I told them it was absolutely ridiculous and I'm pretty sure they were trying to scam me.
I left and went to another place, ordered the same Ray Bans, px lenses, with polarization, carbon, mirroring treatment, etc for $195 out of pocket... again, the same glasses!
My advice, don't go to this place!