I have purchased several of these and they all are working reliably. The only negative comment I can make is that it would be good if somehow the male/female plug unit could be made smaller, so that it could be used in a weather resistant outlet cover without having to leave the cover open.
ACF Greenhouses: Deep outlet covers like the ones available at
https://www.acfgreenhouses.com... are large enough to fit the plugs and be closed.