((It's worth a shot to take this moment to ask what a standard robo-body looks like and what the downsides are. Can't blame a guy for trying, right?))
((Like Geth from Mass Effect. But I think without the lights.
As for downsides, you shall never feel the touch of another human being. It will start out alright, but gradually, you will become more and more uneasy as your brain begins to understand that the most important of your senses were taken away. You will never feel the taste of food. The breath of wind. Sex. Can a human being possibly live with that? For how long?
You will slowly become more and more distant from reality, for touch is most important thing that allows us to separate dreams from reality. How do you know you are not dreaming? How do you know these people are really speaking to you, and not to your imagination? You cannot understand them. Their movements seem alien to you. You cannot feel them. You cannot feel them.
And when someone annoys you, when you wish somebody dead, as every human being does from time to time, you will imagine it in your mind. You will simply imagine it, but you won't feel the blood on your hands, your ears will not hurt from their screams, your eyes will not shed tears. And when you realize what you have done, will you believe it? Or was it a dream? What separates a dream from reality? Touch, smell, taste. But for you, there will be no separation.
You will be driven to madness, not knowing what is a dream and what is a reality. Schizophrenia, psychosis, a simple denial of reality. The names don't matter. You will be pursued by the ghosts of those you have killed, and by the ghosts of those you have not. You will talk to the dead, and turn away from the living thinking they are dead. In the end, you will probably kill yourself. Commit suicide. Many times. First in your dreams. But then finally, in the reality.))