In The Music Box, John Metzger wrote, "Throughout Let It Rock, each song is pushed, pulled, and stretched in all sorts of ways.... The trio of Hopkins-penned tunes... merely extends the sense that Garcia’s visits to Keystone Berkeley primarily provided an excuse for the musicians to get together and improvise on a theme. Yet, like many of his concerts, none of the tunes that Garcia tackled during these shows was ever burdened with mindlessly rambling sojourns. Instead, every note served a purpose, and each musician — Garcia and Hopkins in particular — fed ideas into the fray in order to see what his collaborators could do with them.... Let It Rock is densely packed with superb examples of the utmost musicianship, and it raises the possibilities of the places that this rendition of the Jerry Garcia Band could have gone, if only Hopkins hadn't been facing so many outside pressures."[7]
In Relix, Rob Turner said, "The most recent chestnut from the Garcia archive is a spectacular recording from the very first configuration of the Jerry Garcia Band.... Hopkins' continuously restrained-yet-compelling piano embellishments seem to inspire Garcia to take a jazzier approach than he would with later incarnations of his band. He and Hopkins intermingle elegantly, letting the music waft to a gorgeous whisper during "Sitting in Limbo", and spurring each other to masterful improvisation at the back end of a soulful reading of "Let's Spend the Night Together".[5]
JamBase wrote, "While it is not strictly speaking a complete show, The Jerry Garcia Collection, Vol 2 is sequenced to approximate a two-set club gig, highlighting performances recorded November 17 and 18, 1975, during a pair of intimate gigs at Keystone Berkeley in front of a hometown crowd. The shows demonstrate that this lineup was capable of collective improvisation on the same level as the Grateful Dead, says David Gans, host of The Grateful Dead Hour. 'Everybody could play melody or rhythm, or both, at any time, flying in and out of formation and always in intimate relation to what the others were playing,' he writes in the collection's liner notes."[2]
