Answer and explanation:
I think that gravity facilitates the astronauts work on spaceships since they do not have to worry about handling their heavy body weight in such a delicate environment. And their bodies are, indeed, heavy, because these men must train hard everyday in order for them to get the necessary physical condition for the tasks they must do out there.
However, this does not mean that it is an easy work because they must have a strong mind and mind-muscle connection in order for them to move their bodies on 0 gravity.
Also this provides a "relaxed" pace of work on which they have all of the time to hink if the steps they putting into their work are the correct ones.