My rating is taking into account the fairly modest price of the product. These opera glasses actually have one feature that is better than the online description says, which is that they do focus rather than being fixed-focus as in the description. The description didn't say so, but they turned out to be 3x25 which is good because the 25 mm diameter objective lens provides good light intake for when the viewed object is not well lit. As near as I could judge, they do provide 3x magnification. The user can be wearing glasses or not, about equally well. The barrels appear to be aligned well (good collimation). The edges of the field of view did not have excessive distortion, and chromatic aberrations were not apparent.