If they ignore basic questions or reply with copy pasted text, I become suspicious. They are simply the ones that fit well and survive many rounds of washing or daily use. I also check if the store explains how to measure PD and frame size clearly. Many people do not mind waiting if they understand what is going on.
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/16839-my-secret-to-affordable-prescription-glasses-a-game-changer]
visit this page
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Now I try to read as many real user reviews as possible before I buy anything. Online shops that show detailed measurements and care instructions usually get my attention. When I test a new shop I usually start with one or two items instead of a huge order. Sometimes I even measure an existing frame with a ruler before ordering anything new. If buyers say the item runs small or large, I always adjust my choice accordingly. I think it is better to build a small collection of reliable products than to buy random cheap things. When a store shows clear shoulder width, bust, waist and length, it is much easier to choose.
Hope this helps someone.
