RockaByeBaby received critical acclaim, with critics commending Cassie's versatility and confidence crafting a cohesive and polished body of work.
Noisey's Ezra Marcus praised the mixtape calling it "so evocative and abundant," with "supple, diamond-tipped production" that "mercifully avoids any hint of EDM," continuing to laud Cassie's vocals: "over the last seven years, Cassie's become something of a religion—a lost deity for those of us captivated by her voice's singularly devastating confluence of innocence and experience." Miles Raymer of
Pitchfork detailed the
cult following Cassie's debut album had inspired, noting that she "had yet to release its proper follow-up," adding, "even if it never comes,
RockaByeBaby, the mixtape she’s released to hold us over until then, would more than suffice." Raymer then drew comparisons between the project and, not only to "risk-taking" R&B singers
Jeremih and
the Weeknd, but also "melody-intensive" rappers
Drake and
Future, concluding: "Cassie fans have spent a long, long time waiting for the rest of the world to start paying attention to her. After
RockaByeBaby I can't imagine they'll be able to ignore her for much longer." Bradley Stern of MuuMuse found the record to be "a much more aggressive experience than anything she’s ever done."
BET's Jacob Rohn opined, "Cassie reinvents herself, singing, rapping and showing a much more risqué side. With her maturity in pocket, an all-star roster of features (risqué experts included) and production reminiscent of that early 2000s
Timbaland sound," commenting that her best verse is featured on the track "Numb," and finalizing, "it's easily good enough to be an official album." Writing for
The 405, Tom Baker picked "Sound of Love" as the stand-out song, writing that "her delivery has a real flow" and expressed that "even when she's playing the part of the
gangsta's moll this is Cassie's show," and she "has a magnetism that explain why people are still so eager to listen to anything she touches, and for the most part this could serve as a solid – if different – follow-up to her first album." In the opinion of
The Washington Post's Allison Stewart, the mixtape "feels like the work of a returning heroine stooping to conquer: It’s twitchy and raunchy, begrudging and spare." Zcamp of
Tiny Mix Tapes described it as "an out-of-nowhere pop juggernaut that's entirely unlike anything we've heard from Cassie thus far," elaborating, "Yeah, Cassie's gone
American Gangster on us, and it sounds damn good: a schooling in the methodologies of pop/rap/R&B fusion, backed up by a reputable roster of guest stars."
VIBE Vixen received the mixtape positively claiming its "new sound's giving us chills," with writer Jaz Cuevas stating that the singer is "serving up a raw, laid back vibe, and it's obvious that Cassie is making music that is true to herself," listing "that sexy, sultry, low voice that made us fall in love with Cassie from the jump (cue "
Me & U")" and the accompanying collaborations and visuals as some of its positive aspects. Singersroom.com applauded the body of work for its "aggressive sound" and Cassie's "edgier side," saying that she "rocks out on every track with her soft voice, but with the bravado of a female rapper." while Dhruva Balram declared
RockaByeBaby to set "an example of how an infusion of R&B and hip-hop can work" and Cassie showcasing "her ability to not just sing but mix in rhymes with her vocals," suggesting it "heightens the expectation for the singer's actual album." Despite the project boasting several featured artists unlike 2006's
Cassie,
Interview's Marcus Holmlund felt "it stays true to her now-lauded transient affect: only amplifying her aggression lyrically while sticking to her atmospheric vocal style." In a review for
The Quietus, Gary Suarez said "
RockaByeBaby features an ultramodernity that Cassie's contemporaries continue to struggle with."
Accolades RockaByeBaby was named mixtape of the week by
Stereogum's Tom Breihan, who also remarked it could've been released as a proper album, likening the "same sinister, debauched chill to it" as the Weeknd's
House of Balloons: "Cassie's got that same predatory, almost threatening sexuality in her voice, but she sounds in control in ways that
Abel Tesfaye rarely does," praising her voice and stating all the featured rappers brought "their A-game" with the project still sounding "like it belongs entirely to her, like it’s being beamed directly from a world of her creation." The mixtape was then placed at number forty-three on the same publication's 50 Best Albums of 2013 list, observing "she succeeds like no R&B singer since
Aaliyah." It was picked as one of
Fact's 20 Best Mixtapes of 2013, who dub Cassie as the "Ice Princess of R&B," and call it the publication's "most anticipated mixtape of 2013" serving as a "lean, straight-to-the point reminder of why we actually care about Cassie Ventura so much," and ranked at number eleven on
Centric's "13 Best R&B/Soul Mixtapes & EPs of 2013" year-end list.
The Fader referred to Cassie as "the pioneer of R&B vaporware" and listed the extended edit of the mixtape track "All My Love" by producer Kingdom as one of the most underrated songs of 2013. The mixtape appeared on
Idolator's "10 Favorite EPs/Mixtapes Of The Year," and at number fifty-six on
eMusic's 100 Best Albums of 2013.
RockaByeBaby was also rated the best mixtape of the year by
Dazed, calling Cassie "the ultimate contemporary R&B dreamgirl." ==Track listing==