I played this game the other day.
It's fun, and the open world was pretty massive, but there are some things I found annoying.
For example, I cant ever just walk around and explore, every time I get on the ground, I'm constantly fired at from soldiers who aren't afraid of me and apparently don't have to reload. I'm constantly shot at in all direction, and they never seem to miss me. Reminds me of Wolverine's Revenge.
Also, you kind of half jog half walk when you move, and it pretty much gets me nowhere, and doesn't work at all during a fight. So instead, you have to hold down a trigger to run faster, which just annoyed me.
You can also do this flying glide around the city, but for whatever reason, you do this weird air-hump, jerking motion and it doubles your glide or something. It's really weird to me. I also kept jumping off the sides of buildings as I ran up them.
I didn't care for the camera, it was really tight. And alot of times when you're fighting you have to like, lock-on to different targets instead of just killing everything in sight.
The powers were badass though. I liked the Claws power that diced people up, and eatting people to regenerate was pretty badass. That superkill that takes down everything and shoots out a million spikes from your body is a pretty epic takedown.