Background: Comorbidity between substance use dis-orders and other mental health conditions is common,yet existing treatments often fail to address its full spec-trum. Opportunities for integrated treatment are limited,and the effects of such treatment remain relatively unex-plored. This study explores the experiences of individualswith substance use disorders who successfully completeda four-month integrated intensive program at an outpatientaddiction-care clinic in western Sweden.

Method: An anonymous survey combining quanti-tative measures and qualitative open-ended questions wasused to evaluate the experiences of 65 clients (out of 117)who completed the program between 2015 and 2021.

Results: The findings revealed that most clients ex-pressed high levels of satisfaction with the program. Themean scores for the questions ranged from 9.17 to 9.35, in-dicating a generally positive experience. The standard de-viations were relatively low (1.17 to 1.34), suggesting con-sistency in responses. The median scores for all questionswere 10, with ranges indicating that most participants ratedtheir experiences at the highest level. The analysis identi-fied three key categories of clients’ experiences: (1) strongrelationships and a comprehensive treatment approach; (2)engaged, knowledgeable staff who lead with warmth; and(3) opportunities for self-development through novel expe-riences.

Conclusion: Clients who successfully completed thefour-month integrated intensive program reported high sat-isfaction levels, positive relationships with staff, and valu-able self-development insights. However, the high dropoutrate limited gaining an understanding of the barriers to pro-gram completion, highlighting the need for further researchaimed at enhancing retention rates and developing moreeffective integrated treatment interventions for individualswith substance use disorders.