This article reports qualitative outcomes from a randomized controlled trial comparing eight weeks of cognitive-behavioral group therapy for chronic pain (CBT-CP) and mindfulness-based group therapy (MBT) in individuals with chronic low back pain (CLBP). Approximately 10 months post-treatment, 108 participants completed structured qualitative interviews to express how the study treatment affected their life or health. Responses were qualitatively analyzed to generate a set of themes and subthemes, with between-groups comparisons to evaluate differences (if any) in treatment-response between MBT and CBT-CP. A majority of participants (n = 88, 81.5%) across both groups reflected positively on the study intervention and outcomes, identifying benefits in pain management (31.5%), meditation and mindfulness skills (25.9%), and relaxation skills (22.2%). Perceived benefits varied widely, suggesting no one intervention may be ideal for CLBP. Future research should examine tailoring interventions to target diverse clinical presentations to achieve optimal outcomes.