Quality Counts (QC) is a voluntary quality rating and improvement system (QRIS) and professional development initiative for early care and education programs in Miami-Dade County, Florida. From 2008-2012, The Children's Trust contracted with researchers from the Frank Porter Graham Child Development Institute (FPG) at the University of North Carolina at Chapel Hill to conduct an evaluation of the implementation of Quality Counts. This final report summarizes findings and conclusions of the evaluation, which included surveys and focus groups completed in Years 1 and 2; stakeholder interviews conducted in Years 1 and 4; and analyses of Web-based Early Learning System (WELS) data in relation to QC supports accessed by programs and practitioners and changes in program quality and child outcomes. (author abstract)