I totally love what this plugin does, no question.
The unfortunate thing is it destroys the effectiveness of WP SuperCache insofar as it continuously resets the cache, presumably through cron but I'm unsure of that.
If you're running this plugin and WP SuperCache, you might want to disable this plugin until the author fixes compatibility lest your users and Google Speed Analytics are going to seriously suffer a bad experience.
Again, the functionality of this plugin seriously ROCKS. I'd love to see this conflict fixed, pretty please :)