Epic has dominated the large hospital market in recent years due to its truly integrated software that provides the same experience for physicians in hospitals and practices. While other vendors offer separate inpatient and ambulatory systems, Epic's single code base allows seamless use across settings. This integration has helped win many large healthcare organizations by satisfying physicians who are the most important users. However, Epic is not perfect and also faces challenges like cost overruns and weaker specialty applications. Overall, Epic has been uniquely successful due to its singular focus on clinical integration compared to competitors' more fragmented product histories.