I've played about a month in the WWE Universe mode. I always liked modes like this and the GM mode since I get to make my own champions and book my own feuds. The best thing though is that I can get rid of that shitty looking WWE championship belt and use an old design since they have them in the game.
In the WWE Universe mode i've combined up the current roster with some of the attitude era one. It's pretty damn fun to play like that.