This is great. Free site for a range of features. Easy to set up. Can add video or images either links to URLs or upload yourself.
Nice summary feature which reports back on score you get.
Send as link or more effective embed on your website/VLE etc.
Can get comments on your quiz too.
The list feature is nice for a quick Top 5 features idea.
The Polls feature is easy to create. Also allows users to add in their own ideas.
https://www.opinionstage.com/gideonwilliams/testing-opinion-stage an example of a quiz I made and http://www.opinionstage.com/polls/2337077 for a poll