The device is very easy to use, the build quality is absolutely satisfactory (and much better than my expectations), while the visual representation is clear even at higher magnifications (the lenses are of good quality) and bright. Additionally, the stereoscopic imaging it provides makes the usage effortless and enjoyable, as you can see the object in three dimensions, just like you see the world around you with your own eyes, which is very important because you can have a sense of depth and it is particularly useful when you are simultaneously observing and working on the object (e.g. when using small tools to make interventions on tiny mechanical watch mechanisms with precision of half a millimeter). Personally, I use the device for watch repairs, where the usability and excellent magnification truly facilitate the process. I am confident that it will also satisfy in other applications (e.g. biological samples or metals, etc.). I highly recommend this product without hesitation, with the only aspect outside of evaluation being its durability over time, on which I cannot express an opinion since I have only had the product for a few days.