I've installed it, and when I click on it in the left menu bar for an active survey, the web page freezes and the cursor just spins.
I see a partially transparent overlay on the page, and then nothing happens and I have to force a page refresh to recover, and the WordCloud doesn't load.
I seem to be unable to install this plugin. I successfully unzipped the folder in to "plugins" and i my installation does not read it when i visit the administration plugin manager.