I use the plugin to remind my membership base they haven't logged into the system for awhile and this acts as an accountability partner. It works as designed flawlessly once you understand how it works. It could easily be a five star plugin regarding its functionality; however, it needs a few minor tweaks and adjustments such as: 1. The instructions on the website could use some work. 2. There should be a tab on the "Notifications" menu (Left) side of wordpress that has a short-codes tab with all the codes within it. Currently, you would have had to discover them by clicking all over the place but since you are reading this, just click on the "Add New" under the "Notifications" tab then scroll down near the bottom and click on [Find Shortcodes] tab which will send you to the website where you can copy out a shortcode. 3. The save button should be directly UNDER the Disable & Enable Reminder radio button so you don't forget to save it. I ran a test with the hour parameter successfully but forgot to save the disable selection when I was done testing and the test continue to run and sent out the message multiple times for hours until I discovered the error. The above mishap was possible because there is no way to test the propagated names without it being live. With that being said, finally: 4. The plugin should come with a minimum of "TWO" licenses. One would be used for your live site while the other could be used on a test site where you can actually setup test email addresses and test user ids to truly test the plugin shortcodes. I will probably write to Jack (unless he answers here) to see if I can deactivate my "ONE" license and reactivate it on a test site to test the short codes, then deactivate it and reactivate it on my live site. (A lot of work but necessary to prevent the problems of bullet point 3. With all of the above, this plugin is a solid 4 plus once you develop a system on how you will use it and copy out the shortcodes to an offsite storage area for easy and quick access.