[1][6] It features the Pretenders Collective, which also includes Carwyn Ellis on keyboards and guitar, Kris Sonne on drums, and bassists Chris Hill and Dave Page.

She's one of the greatest singers in popular music, and her continuing passion for creation was an inspiring experience from first the email to the last note of the recording.

[12] Hal Horowitz of American Songwriter found that while the current "Pretenders lineup [...] is more ballad-oriented than many might presume", Hynde "remains a revered rock and roll veteran, one whose integrity has never been questioned, and, as the appropriately titled Relentless implies, she's not going to stop anytime soon".

[10] Timothy Monger of AllMusic described it as "another robust late-career set that exceeds expectations" although felt that closing track "I Think About You Daily" sounds "like it belongs on a different album".

[9] James Hall of The Telegraph wrote that he thought Hynde has never "sounded so honest and uncompromising" and "what sticks with you is her sincerity of delivery" across "myriad textures".