When it was released in 1985, this set (reissued on CD) was Wayne Shorter's first solo album in nine years and it disappointed listeners who hoped he would return to the style of his Blue Note years.
The music is quite difficult to describe since it contains some unpredictable funk rhythms, the feel of electronics (even though much of the music is actually acoustic) and decent (if typically eccentric) soprano and tenor solos from the leader.
Although some of the tracks are catchy, none of the melodies are all that memorable (which is why they have not been covered through the years) and quite a few of the performances do not have defintive beginnings or endings.
Overall this set is worth a listen but far from essential.