Random Text Spinner - good idea?

I found a really nice WordPress plugin that simply shows a random sentence or sentences upon a page load. I created 10 different sentences on a quick summary of "who we are, what we do etc". Of course, each of the ten sentences has the same message but they have been spun correctly by a human - me - to make sure they read well and make sense. Of course, various seed keywords and URL's to my main landers are embedded within those snippets.

Is this a good idea or just negligible? The reason I thought to do this is because I have over 400 blog posts and why not show a slight variation on each page?

Make sense?