"Dangerously in Love 2" received generally positive response from music critics, who wrote that the song effectively shows the vocal capabilities of Beyoncé.
[9] Lyrically, the song is about being romantically obsessed,[4] as indicated in the chorus: "I am in love with you / You set me free / I can't do this thing called life without you here with me".
[10] According to Lisa Verrico of The Times, "Dangerously in Love 2" bears resemblance to Janet Jackson's work if viewed from a "flirty" perspective.
Natalie Nichols of Los Angeles Times stated that the song is just one of many wailing ballads designed to demonstrate "the soulful bleating of Beyonce, the centerpiece of R&B star trio Destiny's Child.
"[4] Sal Cinquemani of Slant Magazine gave a mixed review of the song, stating that it seemed a bit dated and that it was "a near-carbon copy of Survivor’s melodramatic 'Dangerously in Love' [that] is completely superfluous.
"[9] While covering the 2004 reunion of Destiny's Child, Jet Magazine considered the song a major hit of Beyoncé's debut album.
"[25] Beyoncé also added the song to the track-listing of her first solo-tour Dangerously in Love Tour, notably at Wembley Arena in London, United Kingdom.
[27] During the Verizon Ladies First Tour which also featured Alicia Keys, Missy Elliott and Tamia, Beyoncé performed "Dangerously in Love 2" in New York City in front of more than 20,000 fans.
[28] Shaheem Reid of MTV News complimented the performance writing: "[Beyoncé] had New Yorkers cheering like the Yankees had just won the World Series when she perfectly hit the high note toward the end of 'Dangerously in Love 2'.
Shaheem Reid of MTV News praised the performance, writing: "For all the dancing she did, Beyoncé got an equally big — if not more resounding — response for displaying her undeniable vocal ability on the ballads [...] 'Dangerously in Love'.
[32] In Los Angeles, Beyoncé gave a full-length performance of the song, dressed in a long sequent number that flowed straight down to her feet.
[33] Jon Pareles of The New York Times praised the performance, stating: "Beyoncé needs no distractions from her singing, which can be airy or brassy, tearful or vicious, rapid-fire with staccato syllables or sustained in curlicued melismas.