I have learned to avoid items that look extremely different in every product photo. Metal can feel more premium, but acetate can be more comfortable for long wear. Reviews that mention long term use are more valuable than comments written on day one.

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:
[url=https://rentry.co/90834-the-velvet-victory-is-this-the-ultimate-long-fitted-blazer]
check this link
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On the other hand, a well made pair of glasses can last a long time and feel comfortable all day. Now I try to read as many real user reviews as possible before I buy anything. Reading comments with real body photos is one of the best ways to check sizing. In the past I have wasted money on items that looked good in photos but felt cheap in real life. I like when a shop clearly shows PD, lens height and bridge width in millimeters.

Maybe this is useful for someone.