So far, a good purchase to let me use my Nikkor lenses on the Sony a6000.. Others have noted such issues as the arbitrary aperture settings (when using a G lens... less a problem with lenses that allow manual aperture setting), but by basing exposure on the histogram I can usually get the exposure spot on (shooting manual mode). The fit of the adapter with the camera body, and with my lenses, seems perfect. Not tight, not loose, at all.Appropriately easy on, easy off. I haven't shot enough photos outdoors to see whether the semi-gloss black paint (rather than flat black) on the inside of the adapter will lead to flare problems. Some will "ding" the adapter for having no tripod collar/foot. After all, the size and weight of many Nikkor lenses are far greater than those of the a6000. When shooting on a tripod, that's a likely real issue (and why I awarded only 4 stars). Otherwise, just hold the rig by the big lens(es), not by the body, and all is fine in my opinion. As a final note, I've had absolutely no problems getting any of my lenses to focus at infinity. So, overall, a great purchase at an even greater price.