Kylesa are great in whatever they do. This vaults release is no exception. The cover of Set Controls for the Heart of the Sun is monstrous and awesome. The rest of the disc is pretty tasty too. Not recommended for Kylesa virgins, but if you have their other albums, go get this one!
From the Vaults is not representative of Kylesa's best material, but that does nothing to diminish this album's overall value. If you are already a fan of the band, this is a must own, if only to have their excellent cover of "Set a course..." in your library. If you are new to their sound, or just a casual sludge rock listener, you might be better served by Spiral Shadow, Static Tensions, or the forthcoming Ultraviolet (which is excellent). I enjoyed this album immensely, but it is a bit uneven, which is to be expected given the varied chronologies of the songs included. Overall, this is 4 to 4.5 star stuff. Plenty to love for the dedicated fan, and an easy buy decision at ~$5.00 for the mp3 album.