The album debuted at number one on the South Korean album chart with the first-month sales over 324,000 copies. In December 1999, South Korean newspapers reported that the album had sold over 550,000 copies, and is the sixth best-selling album of the year.
Reviews for the album have generally been positive. Yang Seong-hui of Munhwa Ilbo said, "Uhm now has an indisputable position in the dance music industry following the success of her songs, 'Poison', 'Invitation', and 'I Don't Know'." However, Park Eun-joo of Hankook Ilbo cited an anonymous source, criticising her for using "too much sex-appeal" but Park also said that Uhm's performances were positively received by the public.
This album is the most commercially successful album of Uhm's career to date. Two songs ("I Don't Know", "Festival") from the album topped the charts and she won numerous important music awards in South Korea, including Golden Disk Awards and Mnet Asian Music Awards.
^Lee, Hee-yong (November 30, 1999). 뮤직비디오 대상에 이승환의 「당부」 [Lee Seung-hwan's "Please" at the Music Video Awards]. Yonhap News (in Korean). Archived from the original on November 27, 2021. Retrieved November 27, 2021 – via Naver.
^"서울가요대상 대상에 조성모·핑클" [Jo Sung-mo and Fin.K.L. win grand prize at Seoul Music Awards]. Yonhap News Agency (in Korean). Naver. December 14, 1999. Archived from the original on June 8, 2021. Retrieved June 8, 2021.
^"1999.06월 – 가요 음반 판매량" [1999.06 – Sales volume] (in Korean). Music Industry Association of Korea. Archived from the original on December 16, 2008. Retrieved April 18, 2019.