This article explains whether patients’ reports of their health care experiences reflect the quality of care. Despite the increasing role of such measures in research and policy, there’s no consensus regarding their legitimacy in quality assessment. Indeed, as physician and hospital compensation becomes increasingly tied to patient feedback, health care providers and academics are raising strong objections to the use of patient-experience surveys. These views are fueled by studies indicating that patient experience measures at best have no relation to the quality of delivered care and at worst are associated with poorer patient outcomes. Conversely, other studies have found that better patient experiences, even more than adherence to clinical guidelines are associated with better outcomes. Critics express some major concerns about patient reported measures, particularly those assessing patient satisfaction. First, they argue that patient feedback is not credible because patients lack formal medical training. Additional concerns are that treating blood as a medication might increase costs and interfere with the function of blood systems that have grown up outside the oversight of health ministries and other regulatory agencies.