I bought the product expecting the it would not work very well. It turns out that the glasses are quite well designed for function and work quite well. The less than excellent rating for quality is because I believe the glasses are rather fragile. Care should be taken when transporting and storing the device. Crushing the wire frame is a real possibility. If you work outside, as I do, these glasses would be a very useful tool, but a fragile useful tool. I have no problem in recommending this product to others.
I bought these primarily because of the price. I needed a was to see details in coins and other collection items and it doubles well with seeing splinters in skin and just simply seeing things at a magnification that you never have before. There is a light on both eyepieces that works very well and can be pointed wherever needed. One possible drawback is the weight of the eyepiece units in relation to the frame and the ability to stay on my head if I tilt my head downward a bit. It seems a bit end/top heavy but again, not being a jeweler, I will guess that this aspect is normal for what it does and is needed for.
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