A/B received generally favourable reviews from music critics, some of which praised Jökull Júlíusson's vocals,[3][4][5] as well as the songs "No Good" and "All the Pretty Girls".[3][4][5] Kate Hutchinson from The Guardian, however, thought it lacked originality, seeing the pieces as taking inspiration from the Black Keys ("Hot Blood"), James Bay ("Way Down We Go"), Bon Iver ("All the Pretty Girls") and Kings of Leon (much of the rest).[2]