I think it is going to be tough to know how Robinson will ultimately fit in for at least a few weeks, and likely longer. I expect that he will have a big impact in the first few games, because Doc will just give him the ball, and let him do his thing. However, once he has been here a week or two, they will start asking him to play within the offense more, and learn the plays, and he will likely have a lot of trouble for a while as he learns the system, and tries to fit in.
This is going to be a tough time for fans I think, because it is going to be great for a few games, and then he is going to start to look terrible (we saw a similar thing with Marbury last year)...we just have to hope that he gets everything figured out by the playoffs.