This is definitely the best plugin for popups. It works exactly as described. Great tool. I originally needed it for something simple, but I saw how flexible the plugin was and will use the capabilities for much more in the future. The documentation is good for describing the different aspects. It's also easy to create a popup. It's very easy to create messages, insert subscription forms, and let visitors know if there's a sale, so you can make more business! Review collected by and hosted on G2.com.
In order to make the popup really nice, you will need some HTML and maybe some CSS knowledge, which may already be expected when implementing this plugin. However, overall it's very easy to use to create simple plugins. Review collected by and hosted on G2.com.