Having a tracking number that works on common sites is very convenient. The same is true for metal versus acetate frames for glasses. If buyers say the item runs small or large, I always adjust my choice accordingly. I also pay attention to return policy and customer service response time. A product that still looks good after a few months is more impressive than something only good on arrival. A simple pair of glasses or a basic jacket that always works is worth a lot.

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=http://medic.zkgmu.kz/?option=com_k2&view=itemlist&task=user&id=5346598]
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I do not trust only the star rating, I like to see detailed photos and longer comments. For daily use items I try to balance price, build quality and real user feedback. In the past I have wasted money on items that looked good in photos but felt cheap in real life. Whenever I find something that actually works well, I tend to reorder it later. If a piece of jewelry keeps its color and does not irritate the skin, I consider it a win. Forums, blogs and communities create a kind of collective memory for shoppers.

Maybe this is useful for someone.