Actually it's 30 days of no watermarks up to 800x600.  But you can still render up to maximum with watermarks, anytime.  

On all pics there is a Vue6 logo in the bottom right corner - including the first 30 days.  Plan your pics accordingly.

I think PLEs are a  great idea and so good for letting us try it out before plunking down a month's rent on some 1s and 0s.