Here's what I thinks so far: It's fantastic. The damage needs to be toned down a bit but this just a demo, so I'm optimistic that things will change by the time of the release. Those crazy combos you're already seeing are not easy, not at all. People bitch about breakers but I like them and those type of combos are perfect for them. I worked on the Scorpion one for a while and could not get it. My favorites in order so far are Cage, Mileena, Scrop and Sub. Cage is friggan' awesome and a blast to play. Mileena is tough and her combos are difficult. Scorp is pretty powerful but we haven't seen the full scope of the game so there's no reason to believe he's OP yet. I've always disliked Sub Zero, ever since MK 1. I don't care for CC. Toasty is in it! I've had him pop out three times but it's pretty rare to get him and happens very fast. I still can't figure out Johnny Cage's X-Ray move. Every time I try to do it he just leans in.
The montage video at the end is great. Stryker looks awesome!! The two new stage fatalities they showed look great, especially the car one.
Also, if you look closely at the X-Ray moves during the montage, you can see Meat, which I find kind of odd.
And like Jdub said, it's not a button masher. It does feel a very fast MK 2.
I really like Cage in this one tough 
I'm going to change the controls making R1=block, and L1=stance because for easier X-ray and blocking, and use fp + fk for throws. The stance button is still a mystery to me.
