Cool, I guess. Mazzaro sticks out to me because he's the player whose name pops up on Yahoo!'s player search when I try to add Nomar Mazara to my keeper league team.
Apparently Campbell won the College Home Run Derby this year. He is clearly a future superstar.
But seriously, he does seem to have a little pop in his bat, and seems worth taking a chance on given the fact that we had to give up practically nothing to do so. I'm sure we never see him turn into anything, but I'll be checking box scores for his name.