You are, for a lot of people, Victor from 'L.A. Law.'
I am for a lot of people, yes.

I heard there was going to be a reunion special. Is that true?
They actually did one a couple of years back. I wasn't in it. I was asked, but I was in the middle of shooting something else.

Would you do it if another one happened?
No, I don't think another one will happen. Just leave good things alone, I think.

http://www.popeater.com/2010/05/11/jimmy-smits-interview-la-law-imdb-mother-child/

He didn't sound that negative towards it, just that he thought it best they not do another one. He was clearly fine with how his character left and wanted to leave it at that. Of course if we count the reunion movie then he doesn't end up with Grace after all-but for him I guess he is done with it.