I know that many have already listed multiple complaints about this compilation of Ozzy tunes. The majority of them are justified, especially the glaring omission of "Shot in the Dark." However, for someone who was born in the late 80's and beyond, this album serves as a decent stepping stone to further exploration of all things Ozzy. I was born in '76, so I grew up in the 80's/early 90's listening to tracks like "Crazy Train," "Bark at the Moon," and later tracks like "Mama, I'm Coming Home." Fans like myself who were around during this period have probably purchased a number of the albums that this compilation culls its songs from. The younger generation that's coming up right now only know Ozzy as Kelly and Jack's dad. This album allows those kids to hear what Ozzy was really all about.
Let's face it, this album is much better than many give it credit for. It does include quite a few of Ozzy's best tunes. Highlights include the above listed tracks and "Flying High Again," "Perry Mason," "No More Tears," and "Suicide Solution."
So, if you're looking for a solid collection of the bulk of Ozzy's hits, the "Essential Ozzy Osbourne" album is the way to go. If you want anything else, check out the individual albums and come to the realization that a lot of stuff went down before Kelly and Jack became household names.