Honestly, I am delighted with what I have seen at WHLane from him and it was nice to see that Silva was not featured as much as he was before Nasri came. I hope it's going to be like that in future too.
Silva is, what Mancini would say lol, a fantastic player but I don't like to see one player having so much influence on a game like Silva had before Nasri came. It's never good for game itself, it's never good for a team as you never know if such influenced player would start being a dick like Tevez or something similar...
It's always great to have more options..