Abstract: This study examined dually diagnosed clients' satisfaction with the dual diagnosis services offered at short-term residential crisis facilities funded by San Diego County. The Dually Diagnosed Client Satisfaction Survey (DDCSS), developed by this writer, was adapted from the Comorbidity Program Audit and Self-Survey (COMPASS) that was developed by Dr. Kenneth Minkoff and Dr. Christie Cline (2001). The COMPASS is a tool that staff members use to rate the capability of a facility to treat dual diagnosis. English-speaking clients diagnosed with both a mental health disorder and a substance use disorder were asked to complete the DDCSS prior to their discharge. Clients were also asked to complete the Mental Health Statistics Improvement Program Survey (MHSIP), which is a standardized measure that the crisis facilities had been using. The scores received on the DDCSS were compared to the clients' scores on the MHSIP, to determine if a significant difference existed in how the clients rated the programs over all versus how they rated the quality of the dual diagnosis services. The clients' mean scores on the DDCSS were compared to the staff members' mean scores on the corresponding items of the COMPASS to determine if a significant difference existed between staff and clients' perceptions of the delivery of dual diagnosis services. The benefits of performing this research were twofold. The first benefit was that the DDCSS provided dually diagnosed clients with a means to inform staff of how well their specific needs were met. The second benefit was that the comparisons performed identified a few gaps that existed in the delivery of dual diagnosis services. The information learned was used to provide suggestions to the programs so that they can continue to provide the best services possible.