So many questions . . .
Would doing this bring more pain or joy to loved ones left behind?
Would its lack of emotion be jarring and disconcerting or would its presence be comforting?
Who would own the robot, and would they be able to treat it and order it to do anything they wanted, or would there be some sort of rules against its abuse?
What if the robot decided it didn't want to live anymore? Would it be allowed to pass on like humans?
Would the robot be able to upload/upgrade/learn new things that the human didn't know, and if so would that change its personality or behavior?