Sabbath at their best? Definitely. The Osbourne/Iommi partnership was on top form for for this album, and 30 years on, its STILL an essential metal album. From the classic "War Pigs", through to the infamous "Paranoid", Ozzy and co. demonstated the sheer power of their own special sound - one that remains amazing to this day. Metallica and the others all owe this band an enormous debt.If you don't own this album, BUY IT NOW. If you already own it, put it on and turn it up loud!