The game is much smoother and has many new features and fun moments in game play. For example if you toss someone across the arena and that person hits a wall he can fall to a stage underneath. This would be normal, but you can still attack him in mid-air and the other person can block. Also I got few "test your might"s this way and some other fast reaction based actions were needed during the fights. Special moves inputs are usually close to those you know for the MK characters so this is fine.
Basically what I like is the camera flow, the moves of the characters (of both the attacking and defending).
Later that day I got to meet Ed Boon and I cannot express how HAPPY I was that I got this chance.