User blog comment:Jimeee/Skyrim 1.9 beta update adds Legendary difficulty and raises level cap (Updated Apr 8th)/@comment-71.195.67.135-20130406010850/@comment-98.81.78.69-20130407015834

I used it once, on one character. Had level one houndred everything and blew threw Skaldafin like it was Bleak Falls Barrow. I never felt  like I truly accomplished anything.