"Good Enough" received mostly positive reviews from music critics. In his review of "The Open Door", Ed Thompson of the website IGN, stated that the fans who were "looking for the full-blown piano ballad" reminiscent of "My Immortal" (2004) had to wait until the album's final track. He added that at the end of the album they were awarded with "not only the most beautiful song on the album, but also the most unique song Lee has ever released." He further said, "despite Lee's voice giving the tune a funereal cast, there is no hiding the fact that the lyrics are of an upbeat nature. 'Shouldn't have to torture me so sweetly, now I can't let go of this dream, I can't breathe but I feel good enough, I feel good enough for you.'" Bill Lamb, of the website About.com, put the song in his list of Top Tracks from "The Open Door" along with "Sweet Sacrifice", "Call Me When You're Sober", "Your Star" and "Lacrymosa". Jon Dolan from "Entertainment Weekly" said that "[...] the deceptively soft 'Good Enough' flirts again with the dark side, offering 'Drink up sweet decadence / I can't say no to you' and striking a final note of cathartic badness." Kathy McCabe of "The Daily Telegraph" wrote that Lee's "newfound confidence" is evident in the song. In his review of "The Open Door", Andree Farias of "Christianity Today" concluded that though the song "leaves a sweet taste in your mouth", it may not mean much in "a scheme." He added that the song stands as a contrast to everything else in the album.