I have worn Warby Parker glasses for years. Initially the glasses were sturdy. But my last few have been flimsy. The metal attaching the arms to the frame bend very easily. Within a few weeks, the hangers were so loose that the glasses were falling off.
I have had a decent experience with customer service in the sense that they have been quick to respond and courteous. The bad part is that there is never anything they can do.
I'd avoid them.