I think playing the game with the keyboard is best. It is more enjoyable to play the game with an advanced keyboard than any controllers out there. So, go and check it out.
That is also a good alternative to the keyboard. The official controllers provided by steam is definitely the best to play the steam games. I have seen many gamers playing the games with steam controllers. I would definitely try it out.
I think it all comes down used to you are to the controls. There are people that use there keyboard and mouse for everything while there are others that only use a joystick and keyboard. I think that you just have to find the way that you feel most comfortable playing the game. I am more of a mouse and a keyboard sort of guy.
