In 2003, the album was re-released with a bonus track, "Mantra", described by AllMusic reviewer Thom Jurek as "a killer improv tune with a ferocious bass solo by Rauch and insane drumming by Shrieve."[1]
Writing for Rolling Stone, Robert Palmer called Welcome "the most rhythmically satisfying rock recording since Professor Longhair's," and noted that the rhythm section is "at its loosest and best." He commented: "There may not be another 'Black Magic Woman' here, but there is enough of the old Latin fire to satisfy the fans, as well as a promising expansion of sources and resources."[4]
Critic Robert Christgau stated that the album "proves that a communion of multipercussive rock and transcendentalist jazz can move the unenlightened--me, for instance. Good themes, good playing, good beat, and let us not forget good singing."[3]
In a review for AllMusic, Thom Jurek wrote: "Welcome is a jazz record with rock elements, not a rock record that flirted with jazz and Latin musical forms... Welcome was... ahead of its time as a musical journey and is one of the more enduring recordings the band ever made. This is a record that pushes the envelope even today and is one of the most inspired recordings in the voluminous Santana oeuvre."[2]
Jeff Winbush of All About Jazz described the album as "the summit of Santana's jazz fusion era," and remarked: "The secret weapon is Michael Shrieve's energetic drumming and the dual keyboard attack of Coster and Kermode. They push and pull Santana to go beyond and stop holding back."[6]
