Given the immense pressure on politicians across the globe to implement efficient yet socially-accepted climate policies, research on policy acceptance becomes increasingly important. Several studies could contribute to the understanding of what affects policy acceptance, but their methodological approaches usually assess isolated solutions instead of policy mixes and do not display the various impacts of presented policies. Most often, these studies lack a critical self-evaluation of such methodological drawbacks. In this paper we present and evaluate an innovative citizen choice experiment tool (called Participatory Value Evaluation, PVE), in which people are asked to select intensity levels for eleven transport policies, while simultaneously seeing the environmental, social and financial impacts of their choices. We evaluate the PVE and its contents and features regarding its (scientific) Credibility, (political & societal) RElevance and (societal) LEgitimacy (subsumed as CRELE framework) as a prerequisite for supporting socially-accepted policy-making. For this purpose, 601 open text survey answers regarding the strengths and potential improvements of the tool are analyzed by means of a qualitative content analysis. Descriptive statistics of the survey participants are used to further enrich the analysis. Based on this evidence, we can conclude that the PVE is indeed a credible, relevant and legitimate tool for assessing policy options. Participants positively highlighted the tool’s ability to credibly visualize the impacts of selected policies, thereby raising awareness for the severity of climate change and the required policy response. Ambivalent answers were received regarding the social fairness of included measures and the preferred complexity of the tool.