The purpose of this research was to assess the psychometric properties of the Multifaceted Lifestyle Satisfaction Scale (MLSS), an interview structured primarily for individuals with mental retardation to assess their professed satisfaction with their living arrangements and communities, their personal relationships, their recreation and leisure, their employment, and their degree of self-direction. Reliabilities, assessed as internal consistency coefficients, test-retest correlations, and interrater agreements were above .60 on cross-validation samples. Validity was supported through correlations with caretaker predictions of respondents' satisfactions, but not by the Quality of Life Questionnaire, an objective instrument to index quality of life in four dimensions: lifestyle satisfaction, production, independence, and integration. Regression analyses indicated moderate theory-based correlations between MLSS subscales and other variables. In sum, the MLSS appears to be a reliable and valid scale to measure personal satisfaction through the responses of consumers in areas of living arrangement, friendships, recreation, employment, and self-direction.