The polish in the game is EXCEPTIONAL! It feels incredible to move around and shoot the guns, and the art style and music are on point. I chuckled when I shot the tutorial person and the music instantly cut to silence; I adore little details like that.
The gameplay loop was fun, but once you realize what the enemy AI is, it becomes a little easy. I know you can't have them just shoot you the moment they can see you, so I suppose the current implementation was a decent compromise.