The plugin works flawlessly from my testing. It keeps user's photos truly private and comes with a variety of selections for privacy. The developer even contacted me and added a feature that I had requested within just a few days! Great dev, great plugin, definitely worth its salt.
The Plugin just works as advertised. And its one of the best I know. If you and your users are realy into privacy you will have to use it. Because having private Photo albums is one of the most important features that stock oxwall is missing.
This plugin was very helpful for my site but it needs some more functionalities. The full screen mode does not enlarge the photo on the screen : it remains small, which is really a pity. The possibility to be able to add comments or votes would be practical.