His 2006 album I'm Still Livin' was released while Z-Ro was imprisoned for drug possession, to positive reviews. It was called "a great album... powerful" but "relentlessly bleak" by The Village Voice and "one of the best rap albums to come out of Houston" by the Houston Chronicle.
Common themes in Z-Ro's music are crime and poverty, often relating to his personal experience. For example, the music video for Hate You was recorded while he was incarcerated in Harris County jail. Though common, crime and poverty are not the only focuses of his music; Z-Ro has been known to uplift crowds with his hope bringing songs such as “Lovely Day” and “T.H.U.G (True Hero Under God)”.