Enrollees' views of their health plans and physicians are important measures of the performance of the health care system. The Commonwealth Fund's 1994 survey of 3,000 adults in fee-for-service and managed care organizations documents enrollees' experiences with choosing a plan and satisfaction with that plan. Fee-for-service enrollees were more satisfied with their plan's access to and quality of care; managed care enrollees were more satisfied with their plan's cost, paperwork, and coverage of preventive care. The survey also found a high rate of involuntary plan changing, limited choice of physicians, and low levels of satisfaction among low-income managed care enrollees.