Upon its release,
Ballada received positive reviews from music critics. Japanese magazine
CDJournal praised Amuro's "subtle vocal techniques" and "rich emotional expression" displayed in the ballad collection. Kanako Hayakawa of EMTG felt that no matter which era of Amuro's music the songs were from, her ballads showcased the strength of women, where fragile parts of herself were sung with boldly real vocals. She felt that her ballads had similar lyrical matters to her up-tempo songs, such as the joy of feeling loved or someone starting again after a loss. Hayakawa felt that many of the songs on the compilation were not strictly ballads, such as the mid-tempo R&B "
Sweet 19 Blues", the 1990s UK club jazz "
Dreaming I Was Dreaming", and the slow R&B "White Light". Hayakawa praised the album's re-recorded tracks, noting the "divine beauty" of the Taro Hakase pairing and the dignity in her voice. Commercially, the album was a success in Asia.
Ballada debuted at number one on the daily and weekly
Oricon Albums Chart in Japan, opening with a six-day sales of 254,944 copies; this made it Amuro's highest-selling first week sales for a compilation since
Best Fiction in 2008. It remained at number one on the weekly chart for a second run, but only shifted 66,274 units. In total,
Ballada lasted six weeks in the top ten, and stayed in the top 300 chart for 55 weeks. Additionally, it was ranked the fourth best-selling album of 2014 with 431,356 copies sold in Japan, making Amuro the highest-selling solo artist in terms of album sales that year.
Ballada was certified double platinum by the
Recording Industry Association of Japan (RIAJ) for shipments of 500,000 units.
Ballada reached number six on the Taiwanese G-Music chart, and topped the East Asian category for a sole week. In September 2017, Amuro announced her retirement from the music industry. Because of this, her music catalogue skyrocketed on several digital stores;
Ballada was included, and debuted at number 7 on the Oricon Digital Albums Chart with sales of 1,933 copies. In total, the compilation has achieved 3,541 recognized digital downloads. ==Promotion==