I have three Joomla websites and consider myself an intermediate Joomla person. I used the "Joomla-Quiz-Deluxe" extension to test American Sign Language students for the weekly lessons they learn in class. The best & most important feature of the quiz for me is the ability to add video clips. I mostly use multiple choice and true/false questions. The students must play the short video clip and then identify the ASL sign. The flexible format & report features are really great. The students can also print out a PDF result and email a copy to their teacher. I paid for some small custom formatting of the report and was very happen with the quick response and final solution. There are many great features that can be a bit overwhelming but the support team answers questions promptly either through the forum or a support ticket. Some people have complained of the documentation and it could be expanded a bit detailing the features in more depth, but this is a minor inconvenience at best and, again, their support team more than makes up for it. I would recommend this extension to anyone looking a feature-rich quiz & great support.