You can use this module for several purposes.

*** Showing Promotions
*** Showing Advertisements
*** and many more, depended on your imagination!

Very Easy to use!
All you need to do is :

*** Installing Module via Joomla Installer
*** Set Parameters
*** Everything is controllable via module parameters
*** Modal Content
*** Modal Styles, Colors
*** Time to Appear
*** Set Cookie if you do not want to show popup several times
*** Optionally Set Message if user clicks to close the popup
*** Great Support waiting for your recommendations!
*** Publish
*** For style customizations; there is a css file
*** You can ask for support at community forum when you need help
*** UPDATES
*** Current Version 1.0.1