My wife liked his reality show, which revealed who Ozzy really is and how nobody can escape their effect on their children. I watched a few episodes and found Ozzy could be crude, but all in all, he was fairly ordinary with ordinary problems. Most of all, the effects of his past were obvious; I had the feeling he wasn't comfortable with some of his decisions and wanted his children to avoid his mistakes.
I've never been a huge fan, since I didn't care much for the image "Black Sabbath" projected. Still, he'll come out with a song I like, and this is one.