I think it's a good thing.
Honestly, I value life, especially human life, extraordinarily high. I'm borderlining on pacifist, really. But at the same time, I'm a realist. (Hence the reason I'm not a full-out pacifist)
So, I accept that a single death, when it prevents further harm to society as a whole, is a good thing.
Saddam wasn't a nice guy. He was a murderer, a fascist, and in general a disgrace to humankind.
Good riddance.