Admittedly I didn't get as far as I would've liked because I kept encountering this bug (I think) where I could no longer shoot after pressing certain buttons. I really don't know what triggers this.
Shooting feels good, but I think the main camera is a bit too shakey right now.
I'd think about making some of the menus closable via the same key you open them with, but that's just a minor gripe.
Other than that I enjoyed what I played. Good enemy variety and difficulty, perks seemed cool. I'll definitely play more when that bug is fixed (it bricked 3 of my runs in a row)