Most most users will be able to use the Automated Installation procedure:
iFAQ uses Joomla content articles, so it is very simple to create an iFAQ page. Just go to Content > Categories, create a category for your FAQ, then create new articles. One new article for each FAQ item, just like you would create a new article, then create a menu item for this category you've just created.
You can also use the current Joomla content to test iFAQ. Just go to the menu item and create a new iFAQ Category Menu item type and choose a category which has contents in the first level.