In terms of automation, I think they're mostly useless for big enterprises that would use dedicated machines/software made for a specific purpose and therefore much more efficient than humanoid robots, but with such robots (provided their speed could be improved and they can indeed properly learn new things) even a small, family businesses could automate their processes and replace some (if not most) of human labour. The annual cost of a human worker earning minimum wage will be far higher than the robot, whose expected life will probably be at least 10 years. It might not be this generation of robots, but we know this will be possible eventually.
For me it will be missing the human part - the warm part. I believe that nowadays we are becoming more independent as an individual, not relying on any community resulting in more loneliness and the robots will only increase that factor. I believe that robots are a must yes for some jobs, however, they should not be intended to replace people.
That's a tricky one, because, on one hand, they will almost definitely increase social isolation (i.e. contact with other people), but they could provide comfort to lonely people who will now have someone to conversate with etc.
Moreover, they've done some research that shows that AI can appear more empathetic to the people it interacts with, than other people. Of course, it's just a piece of code that doesn't truly care about you, but it can create the feeling that it does.
I just hope man will not become too lazy and let them actually take over every task. (...)
That's kind of what they're designed for, but yeah, I think many people will just get fed up with over-automation and will start moving towards using their own hands instead.