Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Superunknown is a Great Rock Album

Although they didn't achieve the success of their friends' Alice In Chains, Nirvana and Pearl Jam the music on this album is more impressive than ever. The songs display the explosive low-tuned guitar notes of Kim Thayil along with bassist Ben Shepard and Drummer Matt Cameron, proving to be one of rocks most potent rhythm sections. And of course you have the ultimate Soundgarden signature of singer Chris Cornell's wailing, powerful vocals.The album shows it's maturity with songs like "Kickstand", "Like Suicide" and "Mailman". The best part of album are the singles "Spoonman" (which features a slight cheesy but interesting megaphone spoken word type vocals) and "Black Hole Sun" a dark psychedelic moody power ballad that broke Soundgarden into the Top 40. This is a great rock album.