With a 4.5 out of 5 star rating, Andy Kellman of Allmusic declared "This Is Niecy is a great complement to Earth, Wind & Fire's Spirit, released the same year -- not only for its overlapping personnel, but also for its greatness."[6] David O' Donnell of the BBC noted "what really shines from the album is Williams' distinctive soprano voice, range and acrobatic vocal ability which confirms her as one of the greatest R&B and soul singers of her time."[7] Sheila Prophet of Record Mirror gave the album a four out of five star rating. calling This Is Niecy "a great first album", Prophet added "Niecy's voice combines the silkiness of Diana Ross with the exuberance of Linda Lewis".[8]