Guest appearances include Vast Aire, Lyrics Born, and Jean Grae.

Steve Huey of AllMusic gave the album 4 stars out of 5, calling it "[a] thoroughly excellent debut.

"[1] He added, "Diverse's greatest strength as a rapper is his flow, as he spins a dense web of painstakingly constructed language over the beats as though he were spreading soft butter on toast.

"[1] Gabe Gloden of Stylus Magazine gave the album a grade of A−, stating: "There's not one dud to be found on One A.M., and at a lean 42 minutes, Diverse deserves at least that much of your time.

said: "Along with Vast Aire of Cannibal Ox and the mighty Jean Grae, there is simply far too much talent on this effort to go unnoticed.