The plugin is superb, Clean didn’t conflict with other installed plugins or the theme, and most importantly easy to install, implement and it delivers as specified right out of the box. I needed a little bit more out of the plugin due to my project requirements and the developer delivered exceptional customization and integration. He put in the time to ensure quality. I tried few other plugins before this and glad I did and wish I didn’t spend the time with other plugins. The only such Plugin that actually play nice with W3 Total Cache and similar cache tools.
Have a chat with the developers if the available description doesn't completely meet your requirements, and he will be honest and explain the plugin's form and features to help you purchase intelligently.