Some people have been complaining about the health and stamina gauges being high and enemies not doing all that much damage but do keep in mind that it was a game play trailer to show off the game, so they were probably just playing with a levelled guy so that they aren't getting destroyed while trying to show you the game.
The enemies are doing cooler things now too, like in that scene where he shoots a dude in a cage and he busts out or that guy who uses his curved armour to roll on you if you get behind him. It'll be great on the first play through when you have no idea just how a certain enemy is going to ruin your shit even when you may think you have the upper hand. Also deflecting projectiles with your weapon is fucking RAD.
There are a couple of things I would say are a little concerning, like the environments being a little empty, but it's hard to make any kind of solid comment yet because it is just a specially designed game play demo to give us an idea of what it's going to look like.
From Software do good work, I don't think they will let us down.