It's not bad at all. It's a pretty simple control scheme. If you want to learn EVERY move, well, it'll take some learning and practice, but you should be able to just pick it up and play.
There's a tutorial that will show you the moves and you can also learn by doing MyRise.
This isn't like the ECW game from 25 years ago where you have to do UP DOWN UP UP LEFT to do an elbow smash.