I really like what we saw. In almost every way, it appears to be an improvement on MKX, especially the areas that this community wanted changes in.
My big gripe is that we saw so little overall. They hyped this huge reveal event, which is so close to the games release date. I was truly expecting to learn a lot more about what the game contains as far as single/multiplayer content, and see more than a measly 7 characters.
It really left me underwhelmed simply because the reveal was so anemic.