Both left the group at the end of its first United States tour in early 1970,[4] although Giles agreed to play on the second King Crimson album, In the Wake of Poseidon (1970).

[4][8] The song "Flight of the Ibis" has a melody and rhythm similar to King Crimson's "Cadence and Cascade," with different lyrics.

[9] Michael Giles' drum solo in "Tomorrow's People – The Children of Today" has been sampled by a number of rap and hip-hop artists, most notably the Beastie Boys, on the track "Body Movin'", from the album Hello Nasty.

He wrote that Giles and McDonald "take the best of King Crimson and turn it into a highly personal series of sketches that stun with their pure majesty.

"[11] A reviewer in Cash Box called the two sides of the record "gentle complex music that moves from one important statement to another with free-wheeling grace", comparing it to the albums of Mountain, Elton John and Emerson, Lake & Palmer in that Giles and McDonald "create their own musical world that is the mark of rock in its highest and purest form".

[13]: 16  A review in The Guardian Journal opined that "one can't help wishing [Giles and McDonald] would employ a little more discipline and a little less self-indulgence in their work" despite the duo's "undeniable musical accomplishments".