I like how the enemies behave. Even the lowest of fodder do things like perform a speed dash at the player, and even jump and climb up to even higher locations, something well outside what you typically see from most fodder enemies in games like this. They also seem to swarm a lot more aggressively compared to, say, Dead Rising. Looking at the player's movement abilities, they pretty much have to be that way.
I like how the different enemy types shown so far present different challenges and have their own abilities, but to see that there are so many more is also cool. I think I mentioned this already, but I saw a Fizzco robot or mech, some pistol packing enemy that looks human and is wearing a trenchcoat, some apparent animal mutations, seemingly modified human mutants beyond just having a leaf blower attachment, and another looks like some ultra powerful exo-skeleton built like a tank.
The rail grinding, wall running and platforming aspect seems like it should work out pretty amazingly for coming up with all sorts of cool ways to deal with various enemies, locations and situations. If all goes as planned, they've got a winner. The game seems to have the impression of a fleshed out sequel instead of a new IP.