I have had several other binoculars at lower prices. The most recent of these was a highly acclaimed 10X roof prism that cost around $40. But when I tried not only to zoom with it, but also to see the details. cheap ones just don't cut. So I have it. difference between day and night. Cheaper roof prisms struggled to see housefly-sized details at 25 meters. See the size of a housefly (and more clearly) at a distance of 100 meters with these Nikon Porto prism binoculars. The low-light performance is also significantly better. With them you can look at the craters on the moon and then move the focus stick a little and in the foreground you will see a bug crawling on a leaf in the moonlight. And, of course, Porto prisms have better "3D" images because the lenses are further apart. Although they are heavy I would recommend a second strap. Also, 10x is a bit wonky unless you're putting your elbows on something. I would say that 10x is the upper limit of how comfortable handheld binoculars can be without stabilizing them. It can be argued to get them at 8x magnification if you use them a lot by hand in the field. But I like her. Durability seems very reliable, although I haven't exactly tested it for falls or anything like that. The rubberized coating sits very securely. The focus knob hasn't loosened with use like many cheaper binoculars do. Despite the optical magenta tint of the lens coating, the color quality is very accurate. Just get a good quality monocular instead of binoculars. It is better to sacrifice stereoscopic vision than optical clarity. You get what you pay for. If you really want to see sharp detail through binoculars, you'll need to spend upwards of $100. I can't comment on how they compare to other brands, but I think it would be hard to beat them significantly without a much larger budget. And while roof prisms are getting better, AT BEST they can only compete with the cheaper porto prism and less 3D visual effects.