I've posted this a few times. Yes, yes, and fuck yes, go with a controller. I started the first couple of days with keyboard/mouse, and finally went and bought an Xbox controller yesterday. I highly recommend the game with a controller over a keyboard/mouse. The game doesn't seem like it was optimized very well for not using a controller, probably why every hint in the game about how to play gives you only controller options. Fuck, I didn't even know there was an auto target (Q on the keyboard) until I almost smashed my mouse into a thousand pieces. I played the game the first few days with no targeting, and spent most of the time swinging at air, and dying about a hundred times. I was like, "this game fucking sucks! You can't hit a god damn thing!"