In the US, Lester Bangs in Rolling Stone favourably appraised the album in the context of other musical works concerned with space, going on to describe the music as "monotone jammings with hypnotic rhythms and solos unravelling off into... well, space. The synthesizers warble, woof and scream and gurgle like barfing computers, the drums pound, and the singers chant Unknown Tongue rebops." Billboard described the music as "forcefully compelling, electronic and repetitive" and the band "nearly brings to fruition its claim of being a truly 'mind-expanding' rock group"