It compiles performances from the band's three concerts at the Winterland Ballroom in San Francisco, where they played two shows each night on October 10, 11 and 12, 1968.

[6] In a contemporary review for The Village Voice, music critic Robert Christgau was highly impressed by the performances compiled for the album, which he said is ideal for the emerging CD format and surpasses previous live recordings of Hendrix: "The sound is bigger and better in every way for an artist whose sound was his music".

[7] Christgau remarked on its significance to Hendrix's discography in a retrospective review for Blender magazine: "It's been eclipsed sonically (Berkeley) and conceptually (Woodstock).

But this pioneering digitalization, piecing together songs from three San Francisco nights in October 1968 to simulate one uninterrupted concert, redefined posthumous Hendrix and remains a surpassingly realistic live keepsake.

A limited edition sold exclusively on Amazon.com includes a 5th bonus disc containing a bootleg soundboard recording of a performance at the Fillmore Auditorium on February 4, 1968.