I think this is one of the few real advantages we have compared to shopping blindly. Good packaging and a small storage bag are also nice touches for accessories. For fashion and clothing I pay attention to fabric thickness and stitching details. Metal can feel more premium, but acetate can be more comfortable for long wear.
If anyone is interested in real user experiences, I sometimes write short notes about the shops I test.
You can find one of the pages here:
check this link
Sometimes I still make mistakes with size, so a friendly exchange policy is very helpful. Of course we all have different taste, but patterns still appear in long discussions. I also like when stores show real photos without heavy editing or strange angles. For things that I use every day, I prefer to pay a bit more if the quality is stable.
Hope this helps someone.
