Okay, I loved this. Steel did an amazing job with the voice acting, and I loved that it was essentially a fighting game with slight survival horror elements in it. That being said, however, it is incredibly difficult to play on keyboard and mouse. I had a really hard time with the inverted camera for the up and down movement, which made it difficult to move until I switched over to an xbox controller. I also had more difficulty timing the battle commands with a keyboard/mouse. Everything was off by just a second.
Once I switched over, though, the controls worked perfectly. I felt like the battle movement was really smooth. I did keep running into a bug where the game would freeze with one particular zombie, so I ended up just trying to avoid fighting him. I think he's in the second room you can access after going into the main 'open' room. I actually think it's the same zombie Hawk kept getting stuck on.
I agree with FlamingTeddy that there should be a small indicator of which button allows you to interact with objects, at least with the keyboard. I found it quickly enough, but it might confuse players to know that there's a glowing object but not necessarily know how to interact with it. Especially nowadays when the usual interact key tends to be E or Space. Definitely not a fault with the game, but I just know from the games I've played during the last few years that it's normally one of those two keys and that was where MY mind went before I tried clicking on the first med kit.
Overall, this was a treat to play and I'm keeping it because it just made me laugh so much. I really loved the portrayal of the main character. He just set the tone perfectly for the entire game.