Writer Jayson Greene commented that "You can hear that quietly seething confidence radiate through 'Werkin' Girls,' along with her sparking-live-wire charisma and glowering, old-school cipher bars".

[12] A music video for "Werkin' Girls" was released on October 10, 2012, and was directed by Alex Lee and Kyle Wightman.

Club gave the mixtape an A− rating, commenting on its variety, "Haze shows off her considerable range on the mixtape’s 14 tracks, as comfortable laying herself bare on songs like “This Is Me” and the gut-wrenching “Castle On A Cloud” as she is beating her chest and spitting fire on standout tracks “Werkin’ Girls” and “New York,” which employs a handclap-laden Gil Scott Heron sample to tremendous effect.".

[16] In a four out of five star review, Alex Macpherson for The Guardian commented on Haze's progression from their previous mixtapes, stating that "her craft – lyrics, hooks and storytelling – has been tightened up without losing any of her intense intimacy", and concluding that "the concept of realness underpins hip-hop; the fearless, whipsmart talent of Angel Haze brings you face-to-face with the resonant reality of it".

[17] The BBC named Reservation as one of the six best mixtapes of 2012, with writer Mike Diver citing the project as a contributing factor for Haze being featured in the annual Sound of 2013 poll, which showcases new musical artists with exceptional potential.

[4] On mixtape distribution site DatPiff, the official release of Reservation has been downloaded over 48,000 times, earning it a bronze certification.