I'm glad the songs will be released. My favorite two bands from that era are Soundgarden and Alice in Chains.
I never got to see them, but saw Cornell solo (on his Carry On tour, which featured a ton of SG material), and I was lucky to see Temple of the Dog. Always bummed I never got to see SG. It just wasn't in the cards. As for Alice, still a favorite. Rainer Fog was a great record. They recorded the last show in Seattle, I guess with thoughts of releasing it, but it hasn't yet been announced. It was a great show. Had a few friends there. An aside - Chris DeGarmo and his daughter (known as "The Rue") were an unannounced first act to that show. DeGarmo, as some may know, played the acoustic guitar (the long solo-ish interlude section) on "Drone." He didn't want a credit on the album, but Jerry Cantrell mentioned it numerous times in the media.