The biggest disadvantage of robots is that we have less places to work, but on the other hand, we can see, that robots can do bigger and faster work for our company.
yes it is true, and this means that robot is good for certain circles only. but not for all circles.
disadvantage is many people will be unemployed and robots will work everything. This is a crisis that is possible we will experience. It's very scary if the robots will be conquering the world.