The record was a commercial success in South Korea, peaking at number one on the monthly MIAK album chart for two consecutive months[1][2] and sold over 311,000 copies by the end of the year.

[3] It was the second best-selling album of 2006 according to MIAK, only behind TVXQ's "O"-Jung.Ban.Hap which sold 349,317 copies.

The 3rd Masterpiece won Album of the Year at the 2006 Mnet KM Music Festival, while its lead single "Partner for Life" won Song of the Year at the same ceremony and Digital Daesang (Song of the Year) at the 21st Golden Disc Awards.

Similar to what they did in their second album (the music video had two parts; the first part was with the song "Crime and Punishment" ("죄와벌"), while the second part was with the song "As We Live" ("살다가")), their third album also contained two-part music videos.

The first part was with their new title song, "Partner for Life" (내 사람) starring Shinhwa's Kim Dong Wan and also featuring Jeong So-Young, and the second part was released with "Slowpoke" ("느림보").