Living near Sacramento, I follow the Kings pretty closely. It's brutal what the franchise has gone through the last few years. I'm really hoping the new ownership can turn it around.
There haven't been any rumblings about Robinson being a bad buy, lacking work ethic, problem child off the court, whatever. As far as I can tell, he's fallen victim to lack of leadership, no direction, and players dictating stuff. The same thing happened to Donte Greene, Omri Casspi, JJ Hickson, and a few other guys. They'd be playing and producing, you could see the potential, and then they wouldn't play for 3-5 games.
I really like what I see from Robinson and assuming the Spurs don't have to give up a lot, I think he'd be worth the gamble. I think he'd flourish with the Spurs system and leadership.