It saves a lot of trial and error for everyone else. Clear product descriptions save time and reduce the chance of disappointment. Recently I have been testing several online eyewear shops to compare frames and lenses. Good stitching usually means the item will not fall apart after one or two washes.
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 At least here we can see more honest opinions and not only polished marketing content. Shipping speed is not everything, but extremely slow delivery is very annoying. If the first order goes well, I slowly try more products from the same place. I am still learning and testing different brands and styles over time. Having a tracking number that works on common sites is very convenient.
Hope this helps someone.